I have an antique what i believe is a card holder

by robert spencer
(saint pete, FL USA)

it is gold metal and has hallmarks stamped in three area's 28 and a hallmark that appears to read 5Hc and a small stamp hallmark that looks like a square with diagnal cross with what looks like stars in each segment. The one on the left might be a P but tough to read. The box I purchased it in says Gucci. But i cannot find any Gucci markings. can you help?