Thanks all.
Gary - this O'Rourke was originally part of the 1991 Sotheby's "Copeland Auction". I believe other Warren Studio CDV's from that collection had similar hand-written notation on the front. Unfortunately, I don't have that Auction Catalog (although I would love one for my records!!). Perhaps another board member can enlighten us.
P.S. nice avatar
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HOF "Earliest" Collection (Ideal - Indiv): 244/342 (71.4%)
1914 T330-2 Piedmont Art Stamps......: 114/119 (95.8%)
1923 V100 Willard's Chocolate............: 177/180 (98.3%)