Lot of 3 packs Of Dennison Vintage Photo Mounting Corners

Description

These three packs of Dennison photo mounting corners are fully intact and have never been opened. They’re from the early 1900s from best I can tell.
The packets are silver, pink and blue. I believe the contents are the same.
My 95-year-old mother had these stuck to her wall with photo
tax.
That’s the spots you see on theback sides.