Makes me feel a little better that its secure. The segmented belt you question marked, is just that. An early after market V belt for tractors, truck, and equipment, could be snapped apart and reattached to make any length needed. I doubt if it was marketed much after 1950, but have seen very old tractors still running with them. What I see too are islands, where a big heavy whatever was sat, too much to move, then something gets stacked on top, beside, leaned on, and pretty soon there is an island growing! Happens alot, shops, farms, even plants. The Onan I doubt is military as its not green, back when that was new, nearly everything on military contract was OD green. I can seen lots of progress, and congrats on getting that blue Ford tractor going, is nice to have a prime mover handy. Now maybe a winch truck, for the real heavy stuff.