Dating simplicity sewing patterns
It then moved to the right side of the pattern envelope during the 1930's.
At this point the type used was a regular font which changed to script in early 1940's and then back to a regular font in the mid - late 1940's.
Around 1945 the logo changed to white font in a black strip These patterns were in print from 1932 - 1947.
During the mid 1940's the logo was placed in a black box and in the late 1940's the logo was fixed in the left hand corner.
During the 1920's it seems the dates were anywhere on the envelope back, in the 1930's it was moved to the flap of the pattern and then 1940's and later it was moved to the back edge of the envelope.
During the 1920's pattern envelopes were not the size they are today, with these patterns the Mc Call name was on the top.
This is where it stayed until the war when the star was used.
After that the logo was written in script and kept in the upper left hand corner.