Type: Inscription
Location: Along front
Inscription: Stamped intaglio inside a circle "TYPE 3A BLOWPIPE/PATENTS 188240 - 1944428/1835215/OTHERS PENDING/ (in script) "National"/ Trade Mark REG/NCG/NATIONAL CYLINDER GAS COMPANY (in script under the circle):"Koolite" Stamped on pipes "AIR" "GAS"