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Kodachrome was first made in 8mm movie film size in Spring 1936.
Kodachrome film in 35mm and 828 Bantam size was introduced in
August or September 1936. Early Kodachrome processing was
unstable. This example was taken on December 25, 1938 and has
turned red. The processing was changed in early 1939, and images
processed after then enjoy the best permanence of any color film
made. Kodachrome was introduced in professional sizes September
1938. 2.25 x 3.25", 3.25 x 4.25", 4x5", 5x7", 8x10" & 11x14".
Sheet film sizes were discontuned in April 1951. At first, the
processed film was not mounted by Kodak, photographers were
expected to mount their own film. Kodak introduced a projector
for them in February 1937, and Kodak glass slide mounts were
introduced in April 1937. The above example is typical for do-
it-yourself glass mounting. Pressboard mounts were announced on
February 1939 as being standard on all processing effective
April 1, 1939. Some users co