Antique Sterling Lorgnette Case

Antique Sterling Lorgnette Case

Antique Lorgnette case
with worn olive-green velvet lining.
There is a Monogram:
“H A v C T”. The piece shows wear and even 2 small dents in the area of Monogram. The closure works as designed.
It is stamped Sterling inside case. There is a hallmark which I cannot decipher but there is a “17” adjacent to hallmark which is also inside the case near Sterling stamp. Perhaps the “17” is a date or refers to this piece’s number in a series? Tarnish inside case.