I just came across your Sonor page, well done indeed. You asked for catalogues, pictures etc., so I´m gonna send you a shot of one of my favourite snare drums, a 60´s D 471 (?) in gold sparkle.
The size is 14" x 4,5". I bought it around 1988 on a flea market for DM 25,00 ($ 11,00). I had to replace the moving part of the strainer, it was all rusty and didn´t work anymore. Since at that time I wasn´t interested in vintage drums I just got me a Tama thing. But it works well and I use the drum a lot in the studio, although I´m a Premier endorser. It´s got an unbelievable deep and fat tone and gold sparkle is a way out cool finish.
A couple of days ago I saw a snare like that in Hamburg. It was 5,5" deep and was black with horizontal yellow (or gold) thin stripes. Even the strainer did work. The price was DM 425,00 ($197,00).