Calculator in a dark green metal housing with rectangular lower part and two-tier cylindrical upper part. Silver metal crank with white knob extends from the right. Front has a row of small pierced rectangles with numbers visible within. Engraved above each rectangle in gold are the numbers eight to one and thirteen to one in descending order. Above these numbers is a horizontal silver metal bar with three off white pinched knobs. Silver levers with squared white plastic knobs on left and right. Half circle cut out in front center with black plastic insert. Extending from top of insert, two short curved levers with white plastic knobs on either side of a central metal semicircle on post. At left on central cylindrical area, a short horizontal slit with a curved metal lever with a pierced circle below. To the right, engraved in gold the word Schubert over an oval. Continuing right, ten columns with the numbers one through nine in ascending order next to a vertical groove. Top rounded area also includes a row of small pierced rectangles with numbers visible within. Engraved above each rectangle in white are the numbers ten to one in descending order. Above these numbers is a short horizontal silver metal bar with two off white pinched knobs. Housing sits on a thick green metal base with circular feet. Small silver screws attach the various pieces of the housing together at edges.

There are 2 other images of this object. See our image rights statement.

See more objects with the tag green, mechanical, calculation, mathematics.

Object Timeline

1948	Work on this object began.
1958	Work on this object ended.
1970	We photographed this object.
1986	We acquired this object.
2015	We photographed this object.
2017	We photographed this object.
2018	We exhibited this object.
2024	You found it!

DRV Pinwheel Calculator

This is a Pinwheel Calculator. It was manufactured by Schubert. It is dated ca. 1953 and we acquired it in 1986. Its medium is enameled metal, molded plastic. It is a part of the Product Design and Decorative Arts department.

The pinwheel calculator, invented in the 1870s, had circular discs, or pinwheels, with nine retractable pins. A side lever could expose anywhere from 0 to 9 pins, and therefore when coupled to a counter the pinwheels could, with each rotation, add a number from 0 to 9 to the result. This simple and reliable machine was capable of all four arithmetic functions. This model DRV calculator facilitated one-handed operation, with all of the controls located on the right-hand side.

This object was donated by Barry Friedman and Patricia Pastor. It is credited Gift of Barry Friedman and Patricia Pastor.

Calculator
Overall: 11.2 x 31.8 x 15 cm (4 7/16 x 12 1/2 x 5 7/8 in.).
Gift of Barry Friedman and Patricia Pastor.
1986-99-21

Logos 59 Calculator
molded plastic, metal.
Gift of Barry Friedman and Patricia Pastor.
1986-99-1

Tetractys 2P Electronic Calculator Calculator

Tetractys 2P Electronic Calculator Calculator
plastic housing.
Gift of Barry Friedman and Patricia Pastor.
1986-99-4

Our curators have highlighted 3 objects that are related to this one.

Comptometer Calculator And Cover
metal, plastic.
Gift of New York Life Insurance Company.
1995-137-2-a,b

Arithrometer Calculator
brass, wood.
Gift of New York Life Insurance Company.
1995-137-1

Model ET55 Calculator Calculator
abs plastic, electronic components.
Gift of George R. Kravis II.
2015-5-4

Its dimensions are

Overall: 13.5 x 29.5 x 15.9 cm (5 5/16 x 11 5/8 x 6 1/4 in.)

It has the following markings

DRV 55K 115/ Made in Germany

Cite this object as

DRV Pinwheel Calculator; Manufactured by Schubert; Germany; enameled metal, molded plastic; Overall: 13.5 x 29.5 x 15.9 cm (5 5/16 x 11 5/8 x 6 1/4 in.); Gift of Barry Friedman and Patricia Pastor; 1986-99-22

This object was previously on display as a part of the exhibition Bob Greenberg Selects.

The Conservation department has taken one photo of this object.

Short URL http://cprhw.tt/o/2DrC4/
Accession Number 1986-99-22
Object ID 18621831