Description:
- Object ID: ALSA 2008.16.02
- Made by: Contina Ltd Mauren, Liechtenstein
- Model: Type 2
- Serial Number: 530512
- Date Made: Unknown.
- Approximate size: 6.5 cm diameter, 9.0 cm height without the crank.
- Accessories: Metal carrying case, instruction folder, booklet showing computing examples.
- Condition: Good
Commentary:
The Type 2 Curta has an 11 digit input, a eight digit revolution counter and a 15 digit result. While Type 1 was suitable for normal land survey work Type 2 was required for surveys requiring more accuracy. The Curta was small enough to fit in one hand, controlled with a single finger, and would add, subtract, multiply, and divide. It could also calculate powers and roots. A book of tables and a Curta in its metal container could easily be transported into the field for field calculations. It was also used in the office. Some dubbed it the “pepper grinder” due to its design and mode of operation.
It was invented by Curt Herzstark, an Austrian engineer.
Marked on the bottom is “Type ll No. 530512 (Customs Union with Switzerland) by Contina Ltd Mauren System Curt Herzstark
An instruction folder describes how to use the calculator. It is 22 cm X 30 cm opened, 15 cm X 10.5 cm folded. A booklet gives computing examples. It 15 cm x 10 cm with 51 pages.
Murray Ingalls, ALS who donated this Curta stated that he used it until 1973. It was used for his work with the Department of Highways in the Peace River area and later in the Hanna area. The Society has only one Type ll in their collection.
Source of Object: Donated by Murray Ingalls.
Notes: The Society has only one Type ll in their collection. The folder and booklet are stored in the AGHS hard copy file.
References: Visit the article Too Cumbersome for the Field – Mechanical Calculators for additional information.
Description by: Ed Titanich, September 28, 2024 and Gordon Olsson, October 26, 2025.
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