Bristol Siddeley Engines Ltd aircraft engine workers 1960 silver badge

A scarce small silver badge, for the short lived 'Bristol Siddeley Company', the reverse bearing Birmingham hallmarks for 1960 and maker's details "F&S" (Fattorini & Sons). Very good condition, retaining original screw post fixing and silver nut with hallmark, no damage to the enamel.
Width 30mm.
Height 6mm.

Formed in 1959 from the amalgamation of Bristol Aero-Engines and Armstrong Siddeley and bought out in 1966 by Roll-Royce Ltd.