This is Delta no. 928-01-803-1456.  I have not been able to identify what machines this spring was used on.  Only seven available. There are no  returns on any of the items in the NOS catagory.  Please look carefully to be sure it will fit your machine.  Email me if you have questions.  Shipping on  this item is free via USPS or UPS. I do combine shipping wherever possible. I do ship internationally. Just email me and I will quote shipping to your country.