Calculator Manual, Lightning

Description:

  • Object ID: ALSA 2008.04.02
  • Made by: The Lighting Calculator Co.
  • Model: Unknown
  • Serial Number: Unknown
  • Date Made: circa 1922 to WW2
  • Approximate size: 30.5 cm (l) X 6.5 cm (w) X 0.5 cm (h)
  • Accessories: wooden frame
  • Condition: fair

Commentary:

Metal construction set in an oak wooden triangular frame. The black metal calculator [30.5 cm (l) X 6.5 cm (w) X 0.5 cm (t)] consists of seven indented circular dials that can be rotated by a steel stylus (missing) and seven small number holes. The front of the calculator is inscribed “THE Lightning Calculator Co. GRAND RAPIDS MICHIGAN USA”.

The triangular oak wooden frame is 33.5 cm (l) X 10 cm (w) X 0 to 5 cm (h) and is indented to hold the calculator and a steel scribe (missing). The bottom has two good small legs and only pieces of two broken legs; all are black in color.

Source of Object: Donated by Lou Breton, ALS (Hon. Life).

Notes: The Society has only one in their collection.

References: Visit the article Too Cumbersome for the Field – Mechanical Calculators for additional information.

Description by: Updated by Ed Titanich, September 30, 2024.