City of London medal LMC -1813*1872 medal Bishop & St. Lawrence – silver? fob

City of London medal LMC -1813*1872 medal Bishop & St. Lawrence – silver? fob

City of London arms above two shields

looks like silver but not hallmarked

I have not found what LMC might be although there is a church of St. Lawrence next to the City of London’s Guildhall