My first Parker

[Dean Romig]

The frame size is normally stamped on the bottom of the barrel lug along with the gauge. If it isn't there you can measure the exact distance between the firing pins and post the results here. We'll tell you the frame size. The 1-frame and 2-frame were the usual candidates for the 12 gauge hammer guns.

[Mike Schleuss]

First of all, thanks to both Bruce Day and Dean Romig for your quick replies, and thank you to the PGCA, for this forum venue which allows a want-to-be member like myself to learn and better appreciate such a fine firearms history as "The Parker Gun". I look forward to joining the PGCA as soon as my economic situation improves.
The measurement of the distance from pin-center to pin-center, is 1 1/8".
By the way, does everyone fall in love with these guns?? The more I look at it, and research Parker guns, the tougher the idea of parting with it.