Mehring's Pneumatic Foot Power Cow Milker by Mehring, Wm. M - 1903

S. l. (Carroll Co., MD): s. n., 1903. Softcover. First edition, n. d. (ca 1903); 8 1/2 x 5 1/2; single sheet, folded, pp. [4]; two faint creases; small nick to fore-edge of pp. 3-4; a printed price on pp. 4 corrected in pencil; illustrated with a drawing; very good or better condition.An interesting advertisement piece for an early and important machine in the history of mechanization of milking. The early ones of the 19th century could be categorized in two groups - mechanical pressure devices and vacuum devices. The Mehring's invention would, arguably, hold the ultimate spot in pre-pulsator suction milkers. Patented in 1899, the current machine would allow two cows to be milked at the same time, with the operator sitting on its bench between the cows and working the levers with his feet to provide vacuum. The pamphlet provided a short history and a detailed description of the device and its operation, as well as testimonials by happy customers.