Mine is serial 1000375, It was confirmed by HW as being delivered in 1983
This is the actual email that I received back from them..
"Dear Mr. *****,
thank you very much for your e-mail of 25.07.2010.
Please find the following informations:
HW 77 # 1000375 - delivered in 1983
HW 35 # 1551576 - delivered in 2001
HW 95 # 1576934 - deliverd in 2002
Best regards
Hans-H. Weihrauch
Weihrauch & Weihrauch Sport GmbH & Co.KG
Industriestr. 11, 97638 Mellrichstadt
Handelsregister: HRA 8080 AG Schweinfurt
Komplementär: Weihrauch & Weihrauch Sport Verwaltungs GmbH
(HRB 3366 AG Schweinfurt)
Geschäftsführer: Hans-Hermann Weihrauch, Stefan Weihrauch"
John