Three copper printing plates from some sort of encyclopedia or other information product. These are from a very large collection, representing (from left to right) Volume 7 #34, Volume 3 #14 and Volume 3 #15.
Three copper printing plates from some sort of encyclopedia or other information product. These are from a very large collection, representing (from left to right) Volume 7 #34, Volume 3 #14 and Volume 3 #15.