A seller on ebay has a couple of M101's up for sale
http://www.ebay.com/itm/1915-M101-Gr...8AAOSwbdpWY7Vt
To my eyes they look very good, unlike the T206 cards that he also pictures. However this has most of the red flags:
1. Estate find
2. Sold with other obvious reprints
3. "being sold as a reprint, could be a GREAT find"
However, based on the picture of the M101s he has (Wood, Alexander, Sisler), does anything scream out reprint? I find it a little odd that they have the same corner crease and they all seem to have a cigarette burn hole in the back. But, the space between the border looks ok. Anything else?
Thanks
Bob