Georgian specs

[Granmaa]

I was wondering if anyone here has experience with Georgian spectacles.
This pair here have a lion and a duty but no maker's mark. There are the incuse letters IU, but I haven't been able to find them in Grimwade's spectacle makers section.
Any help would be very much appreciated.

Miles


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[dognose]

Hi Miles,

John Ustonson? listed as a smallworker, entered 1803. He's listed in the incuse marks section.

Regards Trev.
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[Granmaa]

Ahhh! Thankyou Trev; that could well be him, although the internet yields no information on him.
It seems strange that both the arms should be marked while the bridge is not.

Miles
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