MAKER: R. AND J. BECK

MODEL: 'IDEAL'

c. 1881

SIGNED:'W.H. WALMSLEY & C^o, PHILADELPHIA, SOLE AMERICAN AGENTS' on one toe of the flattened tripod foot, and 'R & J BECK, LONDON' on another toe

SERIAL NUMBER: 11844

This page shows the Ideal Model with an optional achromatic substage condenser by Beck. This condenser has a swing-out filter/stop holder, and an iris diaphragm. Having the standard RMS nosepiece thread, it can accept any objective as a condenser.