GasLamp 1 & 2 are retail locations for dealers to sell their items - typically antiques and vintage items. While an individual dealer might have interest in buying items from a private seller (like yourself) - the store doesn't buy items from the public, like a Pawn Shop or Second Hand store might. It's really a cooperative/collective of dealers, who rent spaces/booths from GasLamp, so they can sell their items, without having to rent or buy a standalone retail store. Just like you might go to a Farmers Market and find a seller who's interested in something you're trying to sell - the actual operators of the Farmers Market aren't in the habit of buying and reselling from the public. Hope that clarifies things a little. A lot of dealers/sellers find their items, to fix up or "plop" down in their GasLamp booths on Craigslist Facebook Marketplace, or even Nextdoor App. Keep in mind, dealers are looking for DEALS and TYPICALLY won't pay you but a fraction of the item's value.
The advice I received is to post pictures of what you want to sell on their website. This allows them to share your items with many buyers. I do not think they normally buy from walk in customers, but I could be wrong.
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