Dating to the 1950s/1960sd or so, here's a greeting card cover from Rust Craft. Featuring a pair of orchids to the front, the centers of each bloom feature clear white rhinestones. The inside contents are long gone - looks like it was a single sheet of paper - so the cover is ready to be repurposed with your own sentiment. Print your own greeting on a piece of colored paper and then tape or glue to the inside.
Size of the cover is 5-1/4" x 7-3/4" approx. No problems I can spot though there is a bit of paper residue on the inside where the original sentiment was secured and the back appears to have a light shadow as well as a tiny round dent. Use the entire piece or just the cover in your own creation!