What issue is this Mike Doolan Card from?
 

Another item from the recent collection I purchased that I am not sure about. This is a Mike Doolan SS Chicago Cubs #50. It has a blank back. I see a few issues this could be from, but not sure which one.

ANY help is apprecaited!

Thanks

Dave

http://i626.photobucket.com/albums/t...ps74ca670d.jpg http://i626.photobucket.com/albums/t...psa12e32b3.jpg

M101-4. If he was numbered 51 he'd be an M101-5. :)