As 400 says, Dominion is a name that came up but it is probably a grade 2 or 3.

As to who build it, Webley & Scott probably as they built every Holland
prior to 1893 ? and some after.

As to good grade, the "Dominion" action as per this one is generally known
as the Strongest Sidelock actins around and one Holland liked building DR's
on, particulalry the larger calibres.

The ones I have seen, held and shot have all been well balanced, nice fitting guns.

These are also good ways of getting a Holland DR without having to buy a Royal.

500 Nitro