actually I think you can OWN it as long as you don't try to represent it at anytime as "real" money. The laws with coin/bill collecting is sketchy at best when it comes to counterfeits, but secret service and "T-MEN" can confiscate it at anytime if they so choose.
I was just looking at my book "Standard Guide to Small-Size U.S. Paper Money p.106 of this issue. New York [1928A FRN] issued had a printing of these B09734051A>B54622747A printed. The above note falls within this amount printed. B26251766A