Lisheen Report post Posted June 9, 2014 Hi, I work for a sailmaker who has a singer 457 A105M which is a great little workhorse. I am looking to purchase something similar as I am having continuos timing problems with my Pfaff 138. I have found singer 457s with different sub headings of A, G or U, such as singer 456 A 505G-L. My problem is that I can't find an explanation for these headings. Can anyone help? Many thanks! Quote Share this post Link to post Share on other sites
