Antique Folding Lorgnette - ID 111

by Natal Spiteri
(Leeds, UK)

Hi,

I have an antique Lorgnette in very good condition but the hallmark on the underside of the nose bridge is very worn.
It appears to read D.S0. I have been told it's victorian so dated around 1895 and it does appear to be a form of gold.
Wonder if you could advise me on the hallmark or similar please?