A "drummer" would be an early 3 cylinder with a drum front brake which clearly yours is not since it looks like it has an oil cooler and a front disk fluid reservoir.
Yours looks like a fine example of the next generation 3C - very pretty!
I know that Ford Pickup is a 54, a Drummer means your Breganzie has BREV Supper Ferneo Double Shoe drum brakes ;o)
Very rare by the way. Only built in 72 and 73 at the latest when the triples came out a renascence from the 70 to 72 750 SF and SFC's befpre they went to Disc Brakes.