including a set of cards in a case marked 'Stereoscopic...

including a set of cards in a case marked 'Stereoscopic Charts for Squinters by Dr. Emil Hegg' with cards and instructions, a cased set of lithograph cards titled 'Krolls Stereoscopical Pictures for the use of Squint-eyed People' in a blue case with cards and instructions, an unusual set of Swann-Cole Orthoptic Training Cards, and a few loose cards ( a lot)Request condition reportincluding a set of cards in a case marked 'Stereoscopic Charts for Squinters by Dr. Emil Hegg' with cards and instructions, a cased set of lithograph cards titled 'Krolls Stereoscopical Pictures for the use of Squint-eyed People' in a blue case with cards and instructions, an unusual set of Swann-Cole Orthoptic Training Cards, and a few loose cards ( a lot)