Orthoplan Serial Numbers

[JGardner]

Anyone know of a site or reference I can use to determine when an Orthoplan was built based on its serial number?

[Rorschach]

Hi,

This file is J. Gregory McHones work. It lacks data on the last 10-15 years but is good as a rough guide up to 1977. Even after that, if we knew the total production number, could deduct the year of manufacture with relative accuracy.

Leitz Microscope Serial Numbers.pdf

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