Quote Originally Posted by Andy001 View Post
. . . didn't realise they make C02 guns as early as 1880.
The Giffards CO2 guns were first made available in 1890, to coencide with the commercial availability of CO2 for the first time in Paris during the 1890 Paris Expo.

Prior to 1890, CO2 was only available in the laboratory. The earliest mentions in scientific journals of how to liquify pressurized CO2 occurred in the 1850s. One of the earliest recorded uses of CO2 as a propellant in guns can be tracked back to about 1865 with the k.k. Austrian Genie Corp.