I was browsing on gunbroker and saw this gun. I remembered that Bob "S&S" had a post talking about a gun with a "odd" serial number. This is the same rifle that he was talking about 11 years ago.
It's not a 35 Remington anymore, it's 30 Remington now. The normal ser# spot has Y614 and the stock and trigger guard are numbered as 37977.
Be advised that this Y614 is not a correct serial number for these guns.
Here's the auction
https://www.gunbroker.com/item/1038146314