Schneider serial numbers

Schneider Kreuznach Retina-Xenar f/3.5 50mm fitted in this Kodak Retina I model 013 The serial nº (225940) is found on the front bezel

Schneider KreuznachXenar f/2.8 7.5cm fitted in this Porst Lisette (Baldax) 6x4.5 The serial nº (1129216) is found on the bezel of the rear cell (inside the body)

images by Dirk HR Spennemann (Image rights)

Part of the serial number sequence of lenses made by Joseph Schneider & Co, Kreuznach, Germany. Schneider lenses made in Göttingen (the plant which later became ISCO) follow a different sequence.

Date	Serial nº		Date	Serial nº		Date	Serial nº
Dec-1919	30,000		May-1952	3,000,000		Feb-1992	14,460,000
May-1920	40,000		Oct-1954	4,000,000		Jan-1993	14,480,000
Jan-1922	50,000		Feb-1957	5,000,000		Nov-1993	14,500,000
Jan-1925	100,000		May-1959	6,000,000		Jan-1994	14,510,000
Jun-1928	200,000		Feb-1961	7,000,000		May-1994	14,520,000
Feb-1929	300,000		Mar-1963	8,000,000		Jan-1995	14,540,000
Apr-1931	400,000		Feb-1965	9,000,000		Apr-1995	14,560,000
Jun-1932	500,000		Jan-1967	10,000,000		Jan-1996	14,590,000
Aug-1933	600,000		Nov-1968	11,000,000		Apr-1996	14,600,000
Oct-1934	700,000		Jul-1970	11,500,000		Nov-1996	14,620,000
Sep-1935	800,000		Sep-1972	12,000,000		Jan-1997	14,623,340
May-1936	900,000		Mar-1974	12,500,000		Jan-1998	14,651,520
Nov-1936	1,000,000		Dec-1976	13,000,000		Jan-1999	14,690,300
Dec-1937	1,200,000		Sep-1977	13,200,000		Jan-2000	14,726,600
Nov-1938	1,400,000		Oct-1978	13,400,000		Jan-2001	14,756,400
Sep-1939	1,600,000		Oct-1979	13,600,000		Jan-2002	14,788,450
Jun-1942	1,800,000		Jan-1981	13,800,000		Jan-2003	14,820,970
Sep-1948	2,000,000		Oct-1983	14,000,000		Jan-2004	14,853,700
Jul-1949	2,200,000		Jan-1985	14,100,000		Jan-2005	14,890,800
Oct-1950	2,400,000		Aug-1986	14,200,000		Nov-2008	15,000,000
May-1951	2,600,000		Nov-1988	14,300,000
Nov-1951	2,800,000		Jan-1991	14,400,000