
Nitrostarch is a substitute for TNT for destruction work. It is issued either in 1/2 pound blocks, 1.906 inches square by 3.062 inches long with a cap hole as in the TNT block; and in 1/4 pound blocks, 1 1/4 inches square by 2 1/2 inches long with a cap hole extending all the way through the length of the block. These blocks are wrapped in paraffin treated paper. For convenience of handling and use, 1/4 pound blocks are assembled into pound packages.
No information about functioning.
Nothing else to see.
TM 9-1904, Ammunition Inspection Guide (1944)