I'll play.
Easy for me...it's my 1873 Warren Studio CDV of Orator Jim O'Rourke:
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http://imageevent.com/derekgranger
HOF "Earliest" Collection (Ideal - Indiv): 250/346 (72.3%)
1914 T330-2 Piedmont Art Stamps......: 116/119 (97.5%)
1923 V100 Willard's Chocolate............: 180/180 (100%)