Type  Vintage mechanical pencil working very well. Product Name  Parker Duofold aka "Duovac." The triple bands indicate that it would have matched the Duofold Major model.  Manufacturer and Year  Parker, USA - 1941...

Type Vintage mechanical pencil working very well. Product Name Parker Duofold aka "Duovac." Manufacturer and Year Parker, USA - 1942 Length 5-3/16"  Filling System 0.9mm, or "thin" lead. Traditional twist-method...