Sama & Etani 600-ST Concise Science Tables & Circular Slide Rule w/ Case Booklet

Description

Vintage Sama & Etani 600-ST Concise Science Tables And Circular Slide Rule with case and booklet.
The circular slide rule is in nice condition overall, showing a little wear.  The booklet is somewhat worn and has a couple of markings.
No shipping outside the United States.  We can ship only to the name and address provided by eBay.  Thank you!