Honestly it’s about what other galleries think of them The key term here is provenance, how strong and reliable is proving the history of ownership if that gal

Honestly it’s about what other galleries think of them The key term here is provenance, how strong and reliable is proving the history of ownership if that gallery is involved, can they produce the prior provenance on demand I don’t know the best way to find that out from the outside. If you try to sell a piece you own you’ll find it very quickly, after you mention where you got it from