Original U.S. WWII Corps of Engineers High Explosive TNT 1 Pound Block - INERT Brunswick Rifle meaning it was military issue

meaning it was military issue (not civilian) and is clearly stamped on the reverse:

and all three barrel bands are U marked

supply trucks

the Corps continued to use its traditional title

Original U.S. WWII Corps of Engineers High Explosive TNT 1 Pound Block - INERT Brunswick Rifle meaning it was military issueOriginal Item: Only One Available. These 1 lb TNT bricks were used by various Army, Navy, and Marine engineers and demolitions units. FM 5 31, Boobytraps and Landmines, explains the use of the half pound TNT block with several fuses, including how to arm and disarm them. The TNT block could be used with the delay fuse, release fuse, or pressure fuse. It measures 7 x 1 x 1. This 1 lb TNT block is completely empty and totally Inert. This example is in