Mr Patek-Strutsky,

I'm sorry but I think you're partially wrong...

The Superscreen really exists. It is labelled "4x5 Super Screen", and has the reference 052522 on the Linhof Catalog.

The second fg. is 5, I think this means that it's not a genuine Linhof part, but a third-party-manufactured product.

But it is nevertheless on Linhof Catalog.

JLL