Aristo Rietz 89

Logarithmeum

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Model 89

Aristo 89

Slide Rules for this model:

Base

Slide Rule ID	Manufacturer	Model Code	Lot Code
#18	Aristo	89	GFL4
#100	Aristo	89	3LI4
#297	Aristo	89	G6218
#351	Aristo	89	G5925
#380	Aristo	89	G5814