A super rare collectible. A 1912 Plastometer made by Pusey and Jones Company of Wilmington Delaware. Originally manufactured to measure the wear and tear of the rubber rollers that are used in giant printing machines for newspapers. Comes in it`s original box. The dial indicators works as new. The two chain drives for adjusting the depth of the dial indicator are in perfect working order. A beautiful display item for any collection of antique machines. This rare piece can be see at my house 7 days a week. Dr. Randy Borresen