Copper Prints

I have 2 Copper Plate "drawings" they each measure 18x24 inches.They are both in Excellent shape One is of the Declaration of Independence and the other is of the territory of Arizona 1880 The front of each is Copper and the back of each is a Black Material
Any knowledge about it would be greatly appreciated
Thanks

 

I'd assume they're both recent-ish reproductions. The information along bottom might confirm but am unable to read as your close-up photographs are out of focus. Here'a an original of your Arizona map for comparison.

https://www.davidrumsey.com/luna/se...07~170060:Official-Map-Of-The-Territory-Of-Ar

Debora

 

Could it be this?
https://www.worthpoint.com/worthopedia/copper-etching-official-map-territory-434618388

 

By Jove I thing you hit it on the nose
Do you have any idea of its value my friend wants to sell them to me and I don't want to cheat him or me as well
Thanks

 

https://www.icollector.com/Copper-Etching-Official-Map-Territory-Arizona-2239796_i8173541
Apparently, $50 was starting price, and it didn't sell. I don't have a signin for Worthpoint, but it appears to be the same thing.

Something a bit similar in the UK sold on EBay for 40 pounds.
https://www.ebay.co.uk/itm/Vintage-...xfordshire-Part-of-Warwickshire-/233212102586

 

You guys have been as usual very helpful
Thanks A lot to all of you