I saw that orange CC on Classic Tractor fever also.
I really don't think Case ever made any orange C or L series tractors. I'm sure they were all battleship grey.
I know it's common to see orange C's and L's at showsand sometimes in fence rows. I think they were repainted by the owner at time of rebuld or dealer when traded in. They were repainted orange because they looked better than the dark grey.
Often I will hear people tell me some of the S and D series were two toned. This is not correct. D and S series were orange.The 400 series was originally going to be all orange with yellow hood strips. It was a last second change to two tone the 400 series. Owners and dealers would paint tractors to match the paint scheme of the current production units.
Dad bought a 1948 WD9 in the late 60's that was painted like a 650. It is common to find M and H Farmalls painted like 350 and 450's.
Back in the 80's I tried to buy a stuck 1935 CC out of a fence row. The owner wanted $1000.00 so I passed. It was painted orange. The Fairbanks Morse magneto and aftermarket oil filter were also painted orange. There was no sign of orange paint under the tractor.I'm sure it was grey.
1935 was long before my time. I really doubt any C or L tractors were painted orange. I could be wrong.