Hendrie & Bolthoff Denver altitude gauge pat. 1910
Posted by The_Taoist_Cow@reddit | aviation | View on Reddit | 4 comments
So I found this from someone who has a history of veterans in their family. They gave me this.
Hendrie & Bolthoff MFG & Supply CO Denver, Colorado Ashgroft MFG. CO
I thought that some of you might enjoy this. Probably more than me lol.
MaddingtonBear@reddit
Does that only go up to 7,000'? Weird for a company from Denver.
The_Taoist_Cow@reddit (OP)
So from my research, it is in tens of thousands. So 70,000 feet. Thats at least what my research shows
The_Taoist_Cow@reddit (OP)
Edit: This aneroid altimeter (patented in Dec 20th 1910) was produced by The Hendrie & Bolthoff Mfg. & Supply Co. (Denver, Colorado)! It features a dial or mechanism manufactured by the Ashcroft Manufacturing Company which isn’t here. ht enjoy this!!
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