Dating a Norma catalog

I have an undated Norma catalog that I would like to date correctly.

It is listed the 7 x 64 Brenneke for the first time so I think it could be from the 70es

Pivi, according to my Norma records, the 7x64 was first offered in the 1974 catalog.

Note that it is a bit unusual for Norma catalogs of that time not to have a date on the cover or at the back included in the printing code.

Thanks. No date at all

When I saw the heading I did wonder whether some members were getting too affectionate with their collections ;-)