1950-1951 Excelsior Universal Roadmaster & Talisman twin parts book

1950-1951 Excelsior Universal Roadmaster & Talisman twin parts book
'Universal' models U.1 &U.2 125cc with Villiers Mk 10D engine,
'Roadmaster' models R.1 & R.2 197cc with Villiers 6E engine.
1949-53 'Talisman Twin' model T.T.1 250cc with Excelsior Twin engine
23 pages. NOT Illustrated