2 Dry Washers and a Sluice with original blue prints

[Goldstrike]

Hi, I just got these items today and have not even dusted them off yet! I did not want to post these on the classified/for sale forum because I just wanted to get an idea what these might be worth first.
The 2 dry washers come with original professional blue prints dated 1965! and the gentleman that made them has long since passed away. The larger washer has a motor and both have handles for just mechanical operation. I value any comments you may have. I don't prospect so all of these items will be for sale soon. Thanks again guy's!

 

[Flintstone]

Are these out of wood or metal?

 

[Goldstrike]

Wood. They are really well made and work well. The bellows are in great condition for their age!

 

[snakejim]

Very interesting to say the least.
Thanks!

 

[AKNugget]

Have you thought about making copies of the blue prints and selling them? I may be interested.

Neal