4C brakeshields

[3W Hank]

I had bought the 42 Lincoln brakeshield as he had not any 41's, and was told it was better scrub by use the semi deep shields.
Anyway, I found the 41 drums in Sweden recently and was looking after 41 shields or rear shield at LARS but it was nothing there beside a complete kit restored.
I saw a awsome 32 roadster with the C4 shields and I has a friend here that has a set on the wall.
Seller in USA said he bought them around 15 years ago so I guess they did a new batch then so this are not old ones ( but repops )
But from what I heard this parts was very late 50's so not mid or early.
I has try search on it but so far nothing.
Anyone with some information.
I'm still looking after 41 brakeshield or a set of nice rear ones as thet fit in front to ( but need some work ) so better try find a non pitted std 41.