Our coins price guide has values for old & rare United States coins. We actively buy and sell coins. Contact us to find out what your coin is worth today. Sell old coins and note direct buyer contact number of 4insure.us before selling old coins and notes in crores and lakh 4insure.usIMER: BEFORE. We specialize in buying rare coins, old coins, rare currency, and old currency such as: silver dollars, gold coins, proof sets, complete collections, estates.