WWI Era US Army Gas Mask Anti-Dimming Stick Compound w Tin

Description

Anti-dimming stick and cloth in can
Soldiers living in the front during the winter of 1914 line trenches faced many dangers, including enemy sniper fire and chemical gas attacks.
To overcome these dangers, specific tools were created to limit their effectiveness.
Soldiers used trench periscopes to observe the battlefield without exposing their heads to enemy snipers.
Gas masks offered some protection against chemical attacks. Hand-cranked gas alarms and siren whistles gave soldiers wearing a gas mask the ability to warn other of an oncoming chemical attack.
Metal container contains a cloth and a stick.
Both were used as anti-fog for gas masks.
Text on the tin reads :
"THIS CAN CONTAINS ANTI-DIMMING STICK FOR GAS MASKS. INSTRUCTIONS FOR USE: WIPE THE INNER SURFACE OF EACH EYEPIECE CLEAN WITH THE SOFT RAG. BREATHE ON THE CLEANED SURFACE AND ON THE ANTI DIMMING STICK TO MOISTEN THEM AND RUB THE STICK TWICE ACROSS THE EYEPIECE. -- AGAIN BREATHE ON THE EYEPIECE AND RUB THE ANTI-DIMMING COMPOSITION EVENLY OVER THE WHILE SURFACE WITH THE TIP OF THE FINGER. WHEN TO USE THE ANTI-DIMMING STICK: THE COMPOSITION IS TO BE APPLIED TO THE EYEPIECES OF THE GAS MASK, WEEKLY OR AFTER EACH TIME THAT THE MASK HAS BEEN WORN. "
Text on can is very legible .
There are a couple of tiny dents on the can
The top comes off easily & all contents are inside unused