I read your comments on the Pliny Chase catalog. Yours is probably the one from Katen's 77th sale, lot 893. I was in the auction room when it was sold. Frank did not value it highly, only estimating it at $5. It went for $60 to Ken Lowe. I was napping on that lot, but doubt if I could have outbid Ken. He told me at intermission that he knew it was a rare item.
As George Kolbe notes, it is always instructive to be aware of the same copies reappearing on the market, as they tend to obscure true scarcity. My copy did come to me through The Money Tree after Ken's death, so I'm sure it is the example Dave mentions. I don't have a copy of Katen's 77th sale, though. Was there a named consigner?
My copy is NOT the one from the Katen sale of the Fuld library (36th sale, August 15, 1971, lot 679). That copy was "bound and gold stamped". At that time Katen described it as "An exceedingly rare book". It was estimated at $50, but realized only $12. -Editor