Brtz Report post Posted July 2, 2020 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 Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted July 6, 2020 (edited) 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 Quote Share this post Link to post Share on other sites
