Here's a beauty! A true yellow gold trombone x lovers knot chain at that great t shirt length with a decent weight behind it.
 
I do believe that the links are antique and that a vintage jump ring and bolt clasp have been added at a later date (1978 to be precise) but as the chain is unmarked and I only have the stamp on the bolt ring to go off, I am selling her as vintage.
 
Material - 9ct gold
Hallmarks - 9 | Birmingham | 1978 on bolt ring
Country of origin - England
Length - 16" (a smidge over)
Widest width - 3mm
Weight - 9g
Condition - excellent condition