I own an H&H Special No.2 Model or "B" Grade Hammerless ejector gun from 1899. The barrels are dovetail lump and it has the Holland "A.B." ejector mechanism. According to a 1904 H&H catalog that I have, this model cost 50 Guineas and there was a non-engraved version for 45 Guineas, as well a non-ejector for 40 Guineas. The Royal cost 65 Guineas at that time.
I have pulled the locks and they are identical to the Royal in terms of form, fit, finish and function. The only difference it has from a Royal (that I can detect) is the engraving. I understand that most Royals from that time had dovetail lump barrels as well.
I also have a copy of the ledger entry regarding the gun and it has all of the details - striking, stock dimensions, weights, pulls, and regulating info. Of note is one line that says "Finished at factory 9.8.99", perhaps supporting Toby's observations...
