M800 Canvas
 

NOS M800 truck tarp, canvas. This tarp has a few small holes here and there, may have been used once on a truck and then stored. This thing is huge.
Last time I checked, I think it was over 20ft long.
Great for many uses, cut it down to fit your deuce, cover your firewood, cut it up and make canvas items...
Good heavy weight canvas is getting hard to find.
$150 take it away. Even comes with a US vinyl desert camo net bag that it's rolled up in.