|Note_en=Advertising for the [[Duofold]] model as a desk pen and its ''conversion'' to a normal pen and the [[Advertised Feature::Vest pocket]] version called ''"Midget Parker Duodold"''. Mention the [[Pressureless Touch]]. | |Note_en=Advertising for the [[Duofold]] model as a desk pen and its ''conversion'' to a normal pen and the [[Advertised Feature::Vest pocket]] version called ''"Midget Parker Duodold"''. Mention the [[Pressureless Touch]]. |