Hi Hinks

Its a Registry and " design " date so actually there was probably a delay sometimes before production.

That said both these designs were registered within a very short period of time around the end of 1891 with the Frys registered a touch later ( probably only a few days or weeks )

Check out " British Registry Design No. and Dates "

Also lists dates of the old Diamond Regd nos.

Cheers lummox

Thanks very much for that info Lummox