Smiths Chrome Bezel NEW Triumph BSA Norton Ducati magnetic Ducati Electrical I do not know the

I do not know the exact application

Ducati's original part number for the rust-prone black versions was 0440-41-010

They should fit just about any vintage Triumph or BSA engine

length of the bolts a bit longer than 270mm

with threaded retaining screw rather than impossible-to-remove roll pin as used in the old days

Smiths Chrome Bezel NEW Triumph BSA Norton Ducati magnetic Ducati Electrical I do not know thePerfect and unused, an uncrimped bezel suitable for rebuilding any 3" Smiths speedometer or tachometer as used on just about any vintage British machine after 1964 ish. ID is roughly 3 3 8". It is NOT suitable for chronometric instruments.