When I started with combines we had a 6' cut Marshal
Then moved up to a Massey 21 with a chrysler side valve six cylinder, a Massey 780 with an Austin Newage six cylinder and finally a Massey 726 with a Perkins L4 and a straight pipe exhaust.
In the dealership the Claas Matador Standard was the latest thing but we worked mainly on the SF, SFB and Claas Super.