Wintersunset

What is the difference between Adler 105-64 and Adler 169? I make horse tack so I use heavy harness leather, often combined with thick soft foam covered with soft lambskin as a padding. I'm looking for a machine that can handle these two materials combined. Thank you!

How much does a Singer 7-10 worth in a good working condition? I'm looking to buy a machine for saddlery work. Thank you!