拍品专文
Similar to the Hans Sabielny A9 Compator by Schbuert & Salzer, Chemnitz.
细节
A B.U.G. calculator,
No.6574, with eight sliding indices for (/s/d, in nickel-plated sloping case -- 8in. (20cm.) long, in fitted case (lacking stylus)
No.6574, with eight sliding indices for (/s/d, in nickel-plated sloping case -- 8in. (20cm.) long, in fitted case (lacking stylus)