Hi Niels
Well I found the photos and measurements for my Pattern 12 C60L which has the smaller diameter drums.
Front and Rear Shoes are different my photo notes show the fronts as being 2" wide and the rears as being 3 1/2" wide.
Also found the brake cylinder information and source
(will somebody help confirm these) the source is
MAC's Antique Auto Parts .
These number match the CMP parts book and MAC's shows them as having them Rear 91T-2261 1 1/2" diameter Fronts 92Y-2261 1 3/8" diameter (note you have to type it into their side with the dash)
Cheers Phil