i have several bicentennial tokens that I cannot find any info on. One has an indian head on on side and Ben Franklin goes to France for assistance around the edge with 1776 in the center.the second indian head token has Stars and Stripes betsy ross receives commission June 14,1777.the other 2 tokens have Independence Hall on one side and Ben Bernard businessman statesman with 1870-1965. Can anybody give me any info on these tokens tyia