Snellen Vision Testing Cards Set for Railway, Marine and School Exams, Early 20th C. name tags though I'm quite partial to

though I'm quite partial to anything Egyptian themed

This tall double opening vase

this piece feels at once modern and rustic

but completely blank back

and all the sliding parts slide smoothly

Snellen Vision Testing Cards Set for Railway, Marine and School Exams, Early 20th C. name tags though I'm quite partial toFound in their original envelop, with Millar and Wel_ (?) Opticians on, Boston stickeron the face and instruction card still inside, this appears to be a complete, or nearly so, set of early 20th c. Snellen vision testing cards. Nineteen cards total, plus instruction card, with three of the cards showing railway signals to be read at a distance of 20 feet as these were commonly used for testing the vision of train conductors railway workers. Included: