2013 Ae Proof 1-Oz Vs 2013 Ab Proof 1-Oz Vs Ab Proof Gold Rev

More than likely its not worth it especially if youd only be sending in one. For moderns you HAVE to get a 70 to see appreciation, there are a couple exceptions to that but its very rare for non circulating coins. For coins like this theres no chance there wont be any 70s.

Chasing 70s generally isn't a good idea, especially if you can only send in 1 maybe 2 coins. Id look for a place selling them for a decent price and just hope it appreciates in price.

Sometimes it works out where you got a really good one from the mint, a lot of times though you usually get a 69 back.

Unless you have a dealer you REALLY trust though Id highly recommend just getting the membership yourself and handling your own submissions.