Purchasing brass microscopes by James W. Queen and McAllister & Queen of Philadelphia.
Also buying all kinds of antique brass microscopes and accessories. Old microscope oil lamps, prepared slides, and slide cabinets. Other types of antique scientific instruments also wanted.
Email: Allan Wissner
P.O. Box 102
Ardsley NY 10502
Ph: 914 693-4628
James W. Queen & Co., Philadelphia. The Acme #3 model.