National Geographic : 1913 Oct
Leakproof and mighty handy too! This pen I carry. I call it my "Jack Knife Safety ' ' because it is the handiest pen I ever saw... I carried it on a camping trip in my trousers pocket, used it every day and found it always clean, and it wrote like a freshdipped pen. Geo. S. Parker. Jack Knife Safety Fountain Pen Always reliable and Ioo.o efficient. Don't worry about where you put the Jack Knife Safety Pen-any place will do. It's a real safety, yet perfectly simple and without springs or valves. It certainly is a trouble-proof pen ! "he Lucky Curr The big patented idea that makes the Parker the cleanly S ph pen. leak The pens illus trated are only two of hundreds of different stylesin Jack Knife Safety, Standard, and Self-Filling pens at $2.50, $3, $4, $5, and up. 15,ooo dealers sell Parker Pens on trial. If you can't locate a dealer, send for our illustrated catalog. Parker Pen Company 18 Mill St., Janesville, Wis. No. 20, No. 23M,ring, $2.50 $3.25 New York Retail Store, Woolworth Bldg. I' >}:= "Mention the Geographic-It identifies you."