Question regarding a prooflike 1949-S Roosevelt Dime
I have a 1949-S Roosevelt Dime purchased about 25 years ago. When the dealer sold it to me he wrote on the paper inside the coin flip that if I ever sold the coin that he be contacted for the first offer to re-buy. The dealer has subsequntly retired from the coin business. My question is this: Is there a certification service that would possibly encapsulate the coin and identify it (on request, perhaps?) to be a prooflike if they agreed with this designation? Thanks in advance for any help.