Vintage Lapmaster Optical Flat manufactured by Crane Packing Company (Morton Grove, Illinois).

• Material: Quartz

• Flatness Specification: 1/10 Wave (as labeled)

• Includes original fitted case

• Industrial precision measuring tool used for testing surface flatness

• Vintage condition – foam insert shows deterioration

• Optical glass appears intact with no visible major chips

This is an untested vintage precision instrument being sold as found. Ideal for machinists, metrology enthusiasts, optics collectors, or industrial tool collectors.

Please review all photos carefully for condition.