The Reading '75 Apple Parer is believed to be named for the year it was introduced (Thornton, 1997). The '75 was eventually embossed with five patent dates, two by Batchelder, one by Farwell and Goddard, and one by Griscom. Griscom's inventive claim for his letters patent of February 22, 1876 inlcudes the two- piece frame design that defines the '75.
The Reading Hardware Company also made a parer named the Baldwin. The Baldwin is most likey named for either the Baldwin apple or its namesake Colonel Loammi Baldwin (1744-1807) an American engineer, politician, and revolutionary war soldier. The Baldwin Apple Parer is constructed very similarly to the '75 but is made with a one-piece frame.
Batchelder A. G., inventor; Improved Machine for Paring Fruit and Vegetables. 1870 June 7. US103830.
Batchelder A. G., inventor; Improved in Fruit and Vegetable Parers. 1872 March 26. US125004.
Farwell, L. D. and Goddard, A. W., inventors; Improved Fruit-Parer. 1868 May 5. US77600.
Griscom, W. M., inventor, Apple-Parer. 1876 Feb. 22. US173942.
'Parers' Wolf-Lane Hardware Co., Pittsburgh, Year?, p. 841.
Thornton, D. 1997. Apple Parers. Sunnyvale, California: Off Beat Books, p. 173.