http://www.sportingcollectibles.net/fs-blk-wht.htm
Scroll down toward the bottom of the pictures, and alas there is the Babe with a Parker (with some noise about the stock in the same area as that advertised). There are quite a few photos out there of the sultan of the swat with a Parker of some kind.
I don't have a dog in this fight-but would not a PGCA Letter reveal a reference to an order with a trigger gaurd notation?