Record

Corporate Name	Optiker Ruhnke
Dates	1896-2002
Epithet	optical devices manufacturer
Address	Berlin, Germany
Source	https://josefjakobs.info/2022/05/seeing-clearly-the-reading-glasses-of-german-spy-josef-jakobs.html

Items

Reference Number	Title	Date
HI/2024-16-2	Pocket Altimeter	[1875-1925]

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