Noticed this is your very first post - so, while you are waiting for a reply - Welcome Aboard! You didn't list your state (or country) in your profile. So, you might consider jumping over to Sub-Forums: Select Your Area.... and selecting your state for information (i.e., clubs, hunts, finds, legends, maps, etc.) directly related to your state (or country).
Welcome to the forum. It will be hard to sell without a picture and seeing the condition it is in. Also there are a few rules that need to be addressed before you can sell on this forum.
Welcome to TreasureNet Bostjr. Cool Change find For Sure
Truth be told, I have yet to find a dealer willing to "pay" more then Face Value for circulated
silver Certificates.
So Face value plus Postage would be more then a Dealer thinks it's worth
unless they are selling , Then maybe add a Dollar or 2 depending on Denomination.