I am finding heaps of old coins and relics with my Priz 4. Recent finds are two old traders tokens from the mid 1800's, one from Nova Scotia the other an Aussie Peace and Plenty token, a womans broach from the 1800's goldrush days, old triangular key, 1950's threepence (silver in colour but not much real silver in it) a couple of, again goldrush days, belt buckles and a few mid 1900's pennies. I like the Prizm's iron discrimination and find it will ignore a lot more old iron targets than many other machines will. Vs the cheap chinese junkers like out Aussie "goldsnoop" which is really a cheap kids toy the Priz will ignore three times the iron than the stupid Snoop. Turn up the disc on the snoop to do the same and you loose most of your good targets, about 60% of what the Priz will happily still solidly beep on. For what it is I reckon its a great little machine. Im using rechargeable 9.6 volt batts in mine (nimh) and it runs great. Their charge is like using the top end of a really good alk battery or Lithium unlike others which only operate like the bottom end of the same.