London Maker's Mark: I R C ?

[sberveling]

Thank you for this forum. I have a query regarding the Maker's of this serving spoon please (total length 30.5cm). The other marks are clear: London 1781 (too early for a duty stamp). But I'm unable to find a reference to the Maker I R C - maybe I'm looking in the wrong place!
I would be very grateful for some assistance, please.
Thanks
Steven

[SteveDWollongong]

Hi Steven,

A close look at your excellent photo reveals the sponsors mark has an overstrike. Looks to me to simply be RC for Richard Crossley. The 2nd strike moved to the right leaving the the horizontal stroke of the R beneath showing.

Cheers,
Steve

[sberveling]

Dear Steve - Wow! Thank you very much.
Looking closer, I attach an enlargement of the Marker's Mark. The enlargement clearly shows the double strike and how that 2nd strike pushed upwards the upper right top edge of the 1st R making it look like an I, albeit with a bendy top!
I very much appreciate your help. Thank you.
Steven