There is no waiting period for you before you can list a dulcimer for sale- you can do so right now, and posting an item for sale is free. HOWEVER there are certain site guidelines to follow-
Your for sale ad thread must only be located in our For Sale Forum . No sales promotions allowed in other parts of the site. At the top of the above linked page, please read the rules for posting an item for sale, and follow them. And if your item sells, we ask that you make a small donation to our site. If your item does not sell, no donation is asked. (though it's always appreciated)
Feel free to ask other questions if needed. Thanks for asking about this!   :)

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Site Owner

Those irritated by grain of sand best avoid beach.
-Strumelia proverb c.1990

I suggest that you go to the For Sale forum and read the information about selling on this site. Also read the FAQs about selling. I see no time placed on membership before selling something. Just follow the rules from the places I've noted and if you sell an item for $100 or more please make at least a $5.00 donation to FOTMD.

Ken

"The dulcimer sings a sweet song."

I have a dulcimer I would like to list for sale. I believe it was only allowed after being a member for a specified time. Can someone offer some clarification?