Tomas Heming entered his first mark as a large-worker on 12^th June 1745.  There are other recognised marks, but not all recorded.  He was appointed as Principal Goldsmith to the king in 1760, a position which he held until 1782.  This pair of tongs is a lovely pair of delicately engraved tongs with a bright cut engraved edge and “tulip” pattern to the tops of the arms.  I have dated them at c1775.