Identical to the Barritt-Serviss star finder A-310, but suspension eyelet is not bent and missing box cover.
Inscription/Sig.
"THE BARRITT-SERVISS/STAR AND PLANET/FINDER/NORTHERN HEMISPHERE/COLLABORATED BY LEON BARRITT AND GARRETT P. SERVISS"; "COPYRIGHTED, 1906./BY/LEON BARRITT,/PUBLISHER,/NEW YORK CITY"
