Posted By:
Zach RiceDavid-
Someone did purchase the three N173s that you mentioned. Two of the three have the scarce Dog's Head advertisement at their bottoms, one of which is the Buck Ewing with mascot card. A Roger Connor N173 was also included in the lot of three, unfortantly it was not a Dog's Head. The new owner has shared with a few people that they will likely be available within the next few months in a future auction.
Zach Rice