Pfaff 545 H3 weird SN badge

[Brtz]

Hi,

Can anyone help me to understand why SN on my Pfaff 545-H3 has been placed on the brass badge on the column and the mark on the base is empty? (no stamped number apart of small 127)? - see photo.

1. I do not understand why my Pfaff SN is 765631 while similar machines produced between 1950 - 1976 have SN from 4.000.000 to 8.788.456 (reffering to http://ismacs.net/pfaff/pfaff_manufacture_dates.html)?

2. Was my machine a part of any special editon numbered differently?

3. Which digit is "missing" in my machine SN? First or last? 

4. What the small '127' on the base mean? A mark of production facility or foundry?

I would be pleased to find a contact to somebody who were working for Pfaff, to know the history and development of 50, 60, 70 - Pfaff machines better. Any sources will be highly appreciated. 

Thanks in advance, Bert

 

[shoepatcher]

Not sure what the 305 subclass.    C class, M is for leather safety clutch, P is for 4 motion drop feed, N normally means 6mm stitch length.  but this has a -05 on it.

glenn

Edited July 6, 2020 by shoepatcher