073 Michigan and Wisconsin 1858 Paper Products:20"x24" Fine Print The copper plates were used

The copper plates were used as the foundation to produce intricate works like the one you see here

with beach cabanas

The expedition reached the Pacific Ocean in November of 1805

inshore fishing and pier fishing

and Louisiana

073 Michigan and Wisconsin 1858 Paper Products:20"x24" Fine Print The copper plates were usedThis is a beautiful map of Michigan and Wisconsin that utilizing a copperplate engraving method. This was quite popular during that time period, and often times copper plates were bought and sold just as common pieces of construction machinery are today. They were interchangeable and could be used on different presses, or modified to make them work if need be. The copper plates were used as the foundation to produce intricate works like the one you