I have at present a English straight hand buttstock for a sidelock 28 gauge- it has a 1930's G&H no. 3 Silvers red pad with the two plugs to cover the access holes, a perfect fit. If you want the pad for your OO frame gun, I will send it to you- it is 4 & 11/16" length at butt, 5/8" thick at center point with the thin black spacer included and the holes at 3 & 1/4" on center-, you can size it to your gun, if it will fit, we'll "make a deal"- This is not a Galazan repro-- Brad Bachelder believes it is for a Westley Richards 28 gauge sidelock pre-WW2- 26 LPI checking- fine walnut- BUT- someone may have installed a rear sling stud, later removed it and acra-glassed over that small area- seems to me I'd have a better chance of selling the Silvers period plugged pad, as finding a gent with a busted buttstock for a 28 gauge Limey sidelock-- a challenge indeed.. Let me know if you want to pursue this- if it doesn't fit, your only cost is the return shipping to me--