A Mc Lean Tonometer in presentation case, with Signed and numbered Certification by William Mc Lean, and instruction sheet. Manufactured by E.B. Meyrowitz. c1919, matching lot (1185) and date stamped into the device. Instrument is a hand held device meant to measure intraocular pressure as a diagnostic indicator for glaucoma.
Measurements: Approx. case 6 x 3.75 x 1.25 inches; tonometer is 5.125 x 2.875 inches
Condition: Overall very good apparent condition, device has not been cleaned nor tested. Appears to be intact, instruction sheet has wear, folds and chips, signed card is toned, case has scuffs and scratches.
Domestic Shipping:$40

Overall very good apparent condition, device has not been cleaned nor tested. Appears to be intact, instruction sheet has wear, folds and chips, signed card is toned, case has scuffs and scratches.