Hi John,
No. 2087 in at least 3 places. .177". Cox's Patent. C G BONEHILL SOLE MANUFACTURER on top of barrel.
THE BRITANNIA, TRADE MARK on side of breech. Barrel length 21". Seesaw backlight. There is a nut on the
pivot bolt. Repatriated from Downunder.
I have another elsewhere. Details to follow when I prepare for MM.
I've never had a Sureshot. What, if any, are the differences?
Hope this is of use.
Carry on the good work.
ATB, Mick