Women's union suits by Lady Li need help dating

[samoon]

I recently acquired two Union style short leg suits they are both labeled Lady Li both are white and tank style straps and open gusset I can not find any information about these does anybody know anything about these kind of items thanks or possibly the material??

 

[lkranieri]

Here is a bit of 1949 trademark information for Lady Li...

 

[lkranieri]

...and here is a bit of 1922 trademark information for Mandel & Cohen's Spick and Span line of clothing, to give you the names of the owners of the Lady Li line

 

[samoon]

Thank you so much this is just what I needed I was having a hard time dating these because of the fabric use........I could not find an ad or even another suit like them what era do you think 20s 40s ?????

 

[Vinclothes]

Old catalogs show that these styles of one piece underwear did not change very much from the late 1920's into the 1930's.
Marian