My Model 14 (just posted this pic in another thread). It got a lot of use when I was in the Army, even got abused digging holes/cutting tree roots, and hammering stakes with the pommel when needed.
The sheath shown is actually one of the rarest things I own. It is a Tool Carrier, Blasters, issued to EOD units in the 80's. They were brand new issue in 1984, I remember the instructors at Indianhead talking about the ones they had like they were the hot new thing. By 1987, 88, if you tried to order new ones through the supply system, they would send you a crappy commo linesmans substitute, with the advice that the original was no longer available. You can see in the picture that there are built in pouches for dykes and crimper, and the knife sheath in the back (you can see the metal tip of the sheath, similar to the Air Force Jet Pilot Survival knife). The sheath was designed to take a MK 2 knife or similar.
I have never seen one since then, even for sale as surplus.
Also have a Collins No. 1005 machete that I rescued from a yard sale, but no pics - pretty rough shape.