deplaylady, that's a nice looking walking foot. Is there any indication of its age in the manual?
There's a box of attachments that includes an early walking foot on shopgoodwill.com for $14.99, but the shipping is equal to that, at least for me. I think it's in Tacoma. They also have my Elna for $34. It's listed at 10 pounds, which isn't right, so it would ship for under $20. Lots of other machines, too. Nice old White in a cabinet.