Sadly it seems this same clutch master cylinder MBH0676 was used in all Classic production from at least 2006 onwards to the end, thankfully with the sole exception of the 3.7 Roadsters.
Richard
2018 Roadster 3.7 1966 Land Rover S2a 88 2024 Royal Enfield Guerrilla 450 1945 Guzzi Airone