Good day,
Ref: the "Duster" as the offical name of the M19, according to the AFV Database no, only the M42 carries that name.
However, it is possble the name arose as the nickname for the M19, due the dust kicked up when the guns were in action. Once the M42 was created the name became offical. One thing is certain many places do refer to the M19 as the Duster as well. I'd say as far as our OOB's go M19 Duster is likely not wrong as far as nicknames go, and an awful lot of military equipment has nicknames that has over time became their known names, even if the factory or armies never changed the designations.

Good Question
Don't even start me on the Tiger II!!

Bob out
