Silver mark assistance

Any assistance in dating the attached hallmark from a pocket watch would be great thank you. I think it’s Charles Nicolet and Staffer, Sons & Co and it was made in Birmingham but I can’t marry up the date ‘t’.

Thanks in advance.

That “t” is 1893/94. Note that the Birmingham marking for watch cases differed from normally published lists in things such as the punch shapes and the arrangement of the individual components. You may be correct with the identification of the sponsors’ marks but, as there is no comprehensive published list of Birmingham marks, I cannot confirm the identifications.

Phil