Details
Two student's microscopes:
by R & J Beck, London & Philadelphia, No. 8801, with eyepiece, objective, coarse and fine focusing and polished brass horseshoe base; the other, in lacquered and oxidised brass, with eyepiece, two objectives (one signed J. Grunow New York) and plano-concave mirror, in wood case (2)
by R & J Beck, London & Philadelphia, No. 8801, with eyepiece, objective, coarse and fine focusing and polished brass horseshoe base; the other, in lacquered and oxidised brass, with eyepiece, two objectives (one signed J. Grunow New York) and plano-concave mirror, in wood case (2)