This item is for a pair of Dowty sealing washers (bonded washers) suitable for the Triumph and BSA forks as fitted to, T150, T140, TR65, TR7 T150v, T160, B25SS, B50, A65, A75.  From 1971 on including conical hub and disc models.

OEM part number (for reference only): 97-4004

N.B.  These are the correct non self-centering seals: they sit in a recess at the bottom of the forks, so don't need to be self-centering.

N.B. ONLY the sealing washers are included in this sale (arrowed in red) and NOT any other part of the fork assembly (or even the bike or forks!).