As far as I know, there would be NO way to positively identify one of the Ft. Leavenworth carbines, or any other 1899 having them mounted now. Joe Farmer is in the midst of some HEAVY research, which I hope he will ultimately publish, and HAS found indisputable evidence that swivel application to 1899 carbines, under "government auspices", was considerably more widespread than once thought.

Having said that, I personally prefer my carbines without same, and would NEVER pay any premium (thinking I had found a rare variation) for something that "bubba" can easily make in a couple of evenings. Even worse is that some (perhaps all) of the work WAS done at regional facilities, and the usual protection of "if the workmanship isn't perfect, SA didn't do it", doesn't apply here.

Just my $.02 - it isn't going to settle the sling/no sling issue on 1899s. Others will have to make their own choices - but just don't pay a big premium! 

Hi, Seller did not claim anything about swivels. I thought it might fall into that grouping. Overall in good condition at that price. Check the photos. Thanks for responses. (You need to Login to view media files and links)