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Lead id"s as silver:help:

Y

yowow#1

New member
This evening i went to an older house site that has an old barn and the roof covering of the old barn had been replaced i guess 30-40 years ago, i kept getting strong 90-94 signals that turned out to be lead headed nails. 'Nails lost while replacing the barn roofing tin i guess'. My question for folks who know much more about the V detectors than me. Why was the lead headed nails giving off strong 90-94 signals? And i would get mixed in iron signals to, but mostly 90-94, These are the first lead headed nails i ever dug. Anyone?:shrug:
 
There are all kinds of signals that reveil a target to be "out of character" for what they end up being. Shape or orientation can do it as can something being exposed to some naturally occuring/man made acidic condition. The good thing to realize is those targets can be isolated and you will rarely run across them again. The only time that I've ran across lead reading like that was with lead shaped like smashed toothpaste tubes. My guess is they were some kind of old insulating sleeves for something electrical?
The biggest anomoly I have ever ran across was with some wheat cents that I was finding by the dozen. (All dates were from 1909 thru 1925.) The dang VDIs' never rang above 15 and went as low as 4 penny after penny? Figured out that the trees' above them were a heavily berry bearing Mountain Ash (or similar) and the acidity in the soil actually had changed the signal bouncing back from the coins to be a very degraded one reflecting their compromised surface content. Those pennies were the most beautiful glossy red color and once past that, they had non-compromised detail and presently sit in my Green and "Red" ground recovery set!

Another time I was detecting outside an old dry cleaner building. Silver quarter after silver quarter kept coming up in the low penny VDIs'? Started moving closer to the foundation and corroded pennies started coming to light? Peered into the window and noticed a huge rusty ring on the cement slab inside? (I'd been digging in some real nasty dirt that had most likely seen leakage from an old chemical tank!) Things just don't follow rules all the time.
 
90 - 94 could be a silver coin or a large clad coin, but it could also be any odd target. A VDI of 83 could be a quarter but it could also be a steel beer bottle cap. In the case of the beer cap the dominate frequency would not be 2.5. So knowing this I don't dig steel caps.

Take a piece of aluminum can and I'm sure if it is the right size and shape you can get a 90 - 94 reading. I don't know if I every dug a lead capped nail, but if 2.5 wasn't the dominate frequency I would know it wasn't a silver coin.

Look at the chart do you believe Vdi 13 to 16 are gold rings?

[attachment 266208 ScreenHunter_26May.1921.15.jpg]
 
Oh I just realized the type of nail you were finding! My father in law had a house that had a copper roof with the leading lead edges wrapping over into internal wood gutters and the valleys'. I was involved in coodinating the restoration and remember looking and finding those in NOS in a farmers barn. (Never had one pass under my coil though.) This thread has me wondering what happened to a whole slew of Tinker Toy "type" cars that I found with those lead insulator sleeves too? A lot of those rang silver dollar.
 
Rob (IL) said:
90 - 94 could be a silver coin or a large clad coin, but it could also be any odd target. A VDI of 83 could be a quarter but it could also be a steel beer bottle cap. In the case of the beer cap the dominate frequency would not be 2.5. So knowing this I don't dig steel caps.

Take a piece of aluminum can and I'm sure if it is the right size and shape you can get a 90 - 94 reading. I don't know if I every dug a lead capped nail, but if 2.5 wasn't the dominate frequency I would know it wasn't a silver coin.

Look at the chart do you believe Vdi 13 to 16 are gold rings?

[attachment 266208 ScreenHunter_26May.1921.15.jpg]
Click to expand...

Thanks Rob (IL), I understand and appreciate what you are telling me. It was just that those lead headed nails was driving me nuts ringing in high numbers, i just needed to ask someone who knew more than me for some answers, I was hunting in coin and jewelry, The numbers were so consistent.... Thanks again... I live and try to learn a little more each day.
 
nw1886 said:
Oh I just realized the type of nail you were finding! My father in law had a house that had a copper roof with the leading lead edges wrapping over into internal wood gutters and the valleys'. I was involved in coodinating the restoration and remember looking and finding those in NOS in a farmers barn. (Never had one pass under my coil though.) This thread has me wondering what happened to a whole slew of Tinker Toy "type" cars that I found with those lead insulator sleeves too? A lot of those rang silver dollar.
Click to expand...

hey nw1886,

i found out those lead headed nails are real bad dudes, at least for me. when it comes to trying to detect around them.
 
"quote" Look at the chart do you believe Vdi 13 to 16 are gold rings?

I believe that chart tells me they could be, but no sir, i don't believe it till i dig it.
 
I was NOT trying to be a wise guy referring to the chart, I was making the point that the VDI ranges can hold other targets besides the suggested targets. What frequency was dominate? if it wasn't 2.5 that was the clue they were junk.
 
Don't dig 90-94 vdi unless.......much larger(sizing) signal(large silver)......large silver coin vs nail head lead cap.....sizing....gl and hh!!!
 
Dig them all out of there and be rewarded or not...... I like finding lead. :detecting:

Gold and lead like to sink at the same rate. When I hit a field and start finding folded lead or lead washers I start thinking $20 gold pieces. It seams that all those low conductors where never dug back in the day. Todays machines can discriminate so much nicer.

Dig all the repeatable conductors if you have the time and patience.
 
Thanks everyone for your responses, much appreciated

Rob (IL), I never thought you were being a wise guy with the reference to the chart, and your advice is much appreciated.
 
Rob (IL) said:
I was NOT trying to be a wise guy referring to the chart, I was making the point that the VDI ranges can hold other targets besides the suggested targets. What frequency was dominate? if it wasn't 2.5 that was the clue they were junk.
Click to expand...

Rob (IL), appreciate your response, i have to ask, even if the 2.5 frequency wasn't dominate would you not dig a solid 92-93-94 repeatable signal, cause i would never pass on that kind of signal, Thing is, i was hunting in coin and jewelry mode and those iron nails should have been disc'd and nulled out, but they were giving a solid 90-94 vdi, " that is what has me flustered). Could it be something wrong my detector, could it be that the detector was reading lead and iron together and getting confused. The thing being the vdi on any machine should never be 'that wrong' regardless what the bar graph reads,, i own and have owned other machines and their i.d.'s have never been wrong like this machine. just trying to find answers. Thanks and happy Hunting
 
No I would not dig them without the 2.5 being dominate in pinpoint. What you experiencing is called wrap around. The VDI are like a wheel with -95 and +95 next to each other. Also they pinpoint off center much of the time.
 
Do you have permanent access to this location? If the answer is yes, hunt the place clean. Dig all positive vdi's. There is nothing wrong with your detector.

Signals/vdi's can mishmash and add up to something its not. However as Rob said you are experiencing wrap.

I would dig all of them so as to not see them anymore, but I am a digging fool.....:clapping:
 
wrap around makes perfect sense, cause instead of getting negative numbers i was getting positive, ' which made the target seem like a good target. The detector was actually reading -92 (iron) but because of the wrap around it was showing +92,
By Golly i think i'm getting it. Thank you very much oh and they did pinpoint about 4-6 inches off center every time.
 
I do think you have it. If the dominate frequency doesn't match the appropriate VDI range and the pinpoint is off to the side, PASS. I can't remember having to dig beer caps using this method. :wiggle:
 
I'd just say don't ever "not dig" a particular signal type unless you've found it to be a "dump" for something you've already dug and don't want. As much as lead was used for low value things, during the earliest years it was sometimes used as something to protect things of "high value" or serve duty attached to things. Golden rule....adjust to the history of the ground and dig all things unusual!
 
Rob (IL) said:
I do think you have it. If the dominate frequency doesn't match the appropriate VDI range and the pinpoint is off to the side, PASS. I can't remember having to dig beer caps using this method. :wiggle:
Click to expand...


Spot on Rob... One of the great features of the V series detectors. The freq. trick alone has saved me from digging a ton of junk!
 
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