A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Al Stewart
Date: 2022 Jan 19, 13:15 -0800
that one is advertised as 1970's... looking closer I figure it to be early 1960's; note the frame appears to be a complete bronze casting, compared to later "Tamaya-alike" models which all feature bronze racks bonded to an alloy frame.
There are several threads archived here on the subject of the various "Tamaya-alike" brands, and speculation about who actually manufactured them!