Type  Aerometric squeeze filling fountain pen, working well. Product Name  Slimfold ... nominally part of the Duofold UK product line. Manufacturer and Year  Parker, England -- late 1950s or early 1960s...

Type  Fountain pen with aerometric filing system Product Name  Parker 17 Lady. Manufacturer and Year  Parker, England. Mid-1960s  Length  4-1/2" Filling System  Aerometric squeeze filler like the later...

Type  Fountain pen with button filing system Product Name  NS ("New Style") Duofold. Standard Size. Manufacturer and Year  Parker, not marked as to where it was made. Mid-1940s. Length  5-5/16" Filling...