Good morning all. A few questions from the knowledgeable minds on this forum. A friend of mine saw the 600S that I had got and redid and decided that, he too, was in need of a large vise to restore

He picked up this old Wilton No. 60 at an auction yesterday. It seems to be in fairly good shape for its age, I told him that it looked like an early 40's model because of the Pat Pend and Chicago, although I am no expert which is why I come here. I had him send me a pic of the date stamp and it came in with 12-30-66. That does not seem right to me since the vise matches one on Ebay (completed) that is a 1941.
http://www.ebay.com/itm/Rare-1941-W...D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557
Any ideas? Could Wilton have taken it in for repair and added a new key with a new warranty date? It's also missing the dust cover and I was curious what people have done about that. I saw the wilton parts website sells them for $45, but that seems steep to me.
The one picture of it at the auction has a lever hoist next to it. He picked the hoist up for me at $22. Couldn't beat that for a Yale 3-ton.