Mil-Kay Soda Bottles

Mil-Kay was formulated in 1935 as a juice orange drink. Here I have four groupings of Mil-Kay from St. Louis, Missouri. The name of the bottler changed four times that I know of in a span of 22 years. They are as follows
Pic. 1
Mil-K-Botl Corp. of America
Bottles dated in order 1941,1943,1945 &1945
Pic. 2
Mil-Kay Orange Corp. of America
Bottles dated in order 1946 & 1949
Pic. 3
Mil-Kay Sales Corp.
Both bottles dated 1955
Pic. 4
Mil-Kay Corp. of America
Bottles dated in order 1958,1959 & 1960