After the Type 89 "knee" mortar was introduced, the Type 10 grenade discharger was usually relegated to discharging pyrotechnic signal
flares and smoke shells.
A VERY PISTOL, listed in Webster's 10th Collegiate, is "a pistol for firing Very lights." The Very light is "a pyrotechnic signal
in a system of signaling that uses white or colored balls of fire shot from a Very pistol." Edward W.
The Chinese already blew the bugle and sent pyrotechnic signals
[to rally the soldiers] and they attacked, but the Filipinos were able to hold the line.
For more information on all grenades, see FM 3-23.30, Grenades and Pyrotechnic Signals
; TM 43-0001-29, Army Ammunition Data Sheets-Grenades.
* FM 3-23.30 (Chg 1), Grenades and Pyrotechnic Signals