All are 2-piece molded glass. First is 5.75x5.75x4” thick. One side shows Trylon and Perisphere with text “New York World’s Fair 1939.” Reverse reads “Watch Your Savings Grow With Esso.” “Esso” appears in oval logo. Next two are same 3” square by 1.75” deep w/Trylon and Perisphere on one side with text “New York World’s Fair 1940” © “N.Y.W.F.” Reverse has embossed image of large building with text below “Glass Center.” Last is 3” dia. sphere with Trylon and Perisphere on one side/”1939 New York World’s Fair” on other. 1” dia. flat area is molded into sphere so bank does not roll around. All likely came from the Glass Center building/exhibit at the Fair. All are N. Mint.