Drawing Pen

This 5-3/8" steel, German silver, and black plastic drawing pen is marked on its adjusting screw: 0 | 2 | 4 | 6 |8.
The donor, Sebastian J. Tralongo (1928–2007), served in the U.S. Navy during World War II and then worked for the Vitro Corporation in Rockville, Md., for 35 years. He patented a device for signaling from deeply submerged submarines. This pen was received with several other drawing instruments in a wooden box, 1984.1071.13.
References: "Tralongo, Sebastian James 'Subby'," Hartford Courant, May 26, 2007; Sebastian J. Tralongo, "Submarine Signal Device" (U.S. Patent 2,989,024 issued June 20, 1961); "Vitro Corp. – Company Profile," http://www.referenceforbusiness.com/history2/25/Vitro-Corp.html.
Currently not on view
date made
mid 20th century
Physical Description
steel (overall material)
german silver (overall material)
plastic (overall material)
overall: 13.5 cm x .7 cm x 1.4 cm; 5 5/16 in x 9/32 in x 9/16 in
ID Number
accession number
catalog number
Credit Line
Gift of Sebastian J. Tralongo
Drawing Instruments
Drafting, Engineering
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Pens and Pencils
Data Source
National Museum of American History


Add a comment about this object