Vintage T-Shirt Forum & Community Authentication Appraisals

Hi,
glad to have found this space for comparison, I find myself needing to sell a set of collectible t-shirts for a move, while I have identified the "authors" to whom they relate, I cannot define a valid quotation to try to sell them, maybe someone in this forum could help?

Thanks in advance!

BAND: Jon Spencer
YEAR:2001 (Blues Explosion tour - JSBX2001)
MATERIALS: 100% cotton

This one is currently on eBay I believe for about $150 USD. But according to past sales, JS tees seem to max out around $75.

Hi Jimmy,
thank you very much for the info and for taking the time to check and reply, very appreciated!