Sternbündelpatrone weiss mit weisslichem VorsignalRauchspürpatrone, rot (blau oder gelb)
GERMAN CHEMICAL WARFARE MATERIAL
Part I - GROUND WEAPONS AND AMMUNITION
Section Q - SIGNAL PISTOLS AND AMMUNITION

I–Q–18

CARTRIDGE, SIGNAL, SMOKE-FLASH-SOUND
 
 
GERMAN DESIGNATION: R-Patrone
CARTRIDGE CASE MATERIAL: Aluminum or gray-painted cardboard
MARKINGS: Closing cap Painted gray
  Body Gray-green band on aluminum type (Stencilled)
Blue hair lines on cardboard type
  Base Milled over half the circumference
Gray circle on aluminum type (Stencilled)
Cardboard type has unmarked brass base.
CALIBRE: 1.04 inches
LENGTH: 5.25 inches
WEIGHT: 2.75 ounces
ACTION:

Two seconds after firing, a short flash is produced, and then a loud bang and a puff or white smoke.

PERFORMANCE: Delay before explosion 2.5 seconds
  Time of burning of stars  
  Vertical range 250 feet
NOTES:

The smoke-puff can be seen 3 miles. The cartridge is used chiefly as a train-ing device, e.g., by umpires to demote a shell burst.