whitney made vintage valentines

Whitney Made valentines are those sweet little ones that are printed on a slick lighter weight paper, embossed and gilded. They often have line drawings inside and the poems are so fun. 

The majority of the ones I've been finding have been from the 1920s and 1930s, but the George Whitney Company was founded in Worcester, MA in the 1870s.
He developed the machinery for the embossing and paper lace cutting.  Prior to this time all these materials were imported from Europe.

Another name that shows up is Carrington out of Chicago, but I'm having a harder time finding info about them.  I even have a few cards that have both Whitney Made and Carrington printed on the back so I'm assuming there was a buy out or merger somewhere along the line. 

The inks used in these cards is still very bright and true and the paper used were obviously very low acid content, for them to have held up so well.