These calipers have the number CP2541 cast into the bodies and have the number CP4270-344 etched on them. They also have a number stamped into them;
After doing a bit of Googling I came across an advert on here advertising a pair for sale (initially I thought they were Escort 'Monte Carlo' tarmac rally brakes which are CP2270 and very similar). Pictures only show 1 caliper because I only brought 1 into the house to photograph, but they are a matched pair.
They are in pretty good condition with no significant damage, the major problem is the mounting lug holes have been 'stretched' to enable them to fit on a Ford upright with 3.25" hole centres and the lugs have been 'shaped' to gain clearance;
I have removed one piston to check its condition and that of the bore and all is good on the one I removed;
As can be seen the flexi-pipe joining the two sets of pistons has been replaced with a solid pipe;
and the pad retaining plates and hardware have surface rust on them.
Overall I would say they are in good used condition, located in North Hampshire (UK) viewing is more than welcome. I am open to offers. After I found out what they were I thought I'd offer them on here in case anyone had a need for them. After all I can fit any old caliper to my race car, but genuine RS200 calipers are probably harder to get hold of now.
You can call me, Kev, on mobile 0 7 8 1 0 8 2 5 0 2 7 or text or pm
Cheers