Description:
- Object ID: ALSA 2014.02.04
- Made by: E.R. Watts & Son, London, England
- Model: Unknown
- Serial Number: Unknown
- Date Made: Unknown
- Approximate size: 8 cm diameter, 3 cm depth
- Accessories: None.
- Condition: Good
Commentary:
This altimeter is in a brass case with a glass crystal, It has a 1.5 diameter brass thumb screw sticking out of the top by 2 cm with a brass ring attached to it. There is a small swivel magnifying glass attached to the side. The dial has a needle that rotates around the circular face in accordance with the atmospheric pressure. The dial is graduated in inches of mercury from 23 to 31 inches and in altitude fom 0 to 8000 feet. On the face of the dial is: ” Surveying Aneroid Compensated” and block lettering: “E.R.WATTS & SON LONDON, ENG. OTTAWA & WINNIPEG”
Source of Object: Donated by S.M. Loeppky, ALS.
Notes: The Society has only one in their collection.
References: Visit article The “Vagaries of that Instrument” – The Altimeter for more information.
Description by: Ed Titanich, September 27, 2024.