Artifact Details


SAGE light pen

Catalog Number



Physical object


ca. 1958

Identifying Numbers

Model number III Stamped into left side of barrel


overall: 3 1/4 in x 7 in x 83 in; overall: 3 1/4 in x 12 in x 11 1/2 in


This is a light pen from SAGE. It is shaped like a gun with a cylindrical handle, cylindrical barrel, a small hole at the front of the barrel, and a microswitch trigger at the rear of the handle covered with a copper colored metal strip. There is a black front cylindrical sight with a lens at the black connected to the barrel via a small cubical box, and a clear plastic rear sight that has a hole to sight through.
There are two cables connected to the bottom of the handle. One is a black coax cable with a male BNC connector at the far end, and the other is has 12 color coded stranded wires with yellowed translucent sheath with a connector that has two rows of 6 bladed pins and 2 round keying pins between the rows. The connector housing also has a potentiometer adjust protruding from it.

Both handle and barrel are gray enamel coated, while the front sight is black anodized. The rear plastic sight was painted red, and there is a red band around the handle near its base. The handle and the barrel are partially painted black that has been worn away




Gift of the Digital Equipment Corporation

Lot Number