E. & H. T. Anthony & Co. (New York, NY)

 

Platyscope Lens Variation 2 (lever operated iris), c.1890's

 

 

Notes: 

The Anthony Platyscope Lens appears to be a rapid rectilinear type, i.e., two achromats, front and rear.  Anthony Platyscope Variation 1 has Waterhouse stops, Anthony Platyscope Variation 2 has a lever operated iris diaphragm, and Anthony Platyscope Variation 3 has a ring operated iris diaphragm.

References:
 

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