Bob...
I'd like more information about lot #2, the Stall & Dean Cobb advertisement. Specifically, have you had professionals date the paper and printing on the piece? I've come across two of these since the Halper auction and both have been reproductions. As a matter of fact, if you look closely at the one offered in Sotheby's auction and compare it to those since offered, they all contain the same irregularities as if they were copied from their catalog. All irregularities but one, however. The original Halper piece had a crease while those that have followed are mysteriously cut differently (a slightly different shape) so that, alas, the crease vanishes! Here is a brief thread about the repros:
http://www.network54.com/Forum/56713...t+another+fake...
I'm not saying that the item in your auction a reproduction, I just want to state that there are several forgeries out there that look similar to lot #2 and are slightly different than Halper's. Could you please disclose any information of its history and your process of authentication?
Thanks...
Jerry