I didn't see the paper you were asking about, but from the pictures in your gallery it looks like most of the stuff you picked up at the garage sale are from Stampin' Up, so I would bet that the paper also came from there.
If you can post a pic of the paper here, I'm almost positive someone will know what it is and help you! Not me...I'm usually terrible with that , but there's usually someone here that can identify almost any scrapbooking product!
That does look like Stampin' Up paper. It looks like the paper from their scrapbook collection packs that came with stickers, borders, and other embellishments. If you look in the corners, I think either "SU" or "Stampin' Up" is printed on one of them very lightly. That's the only thing that I didn't like about their scrapbook papers.
Edited by Scrapjanny on 09-23-13 07:02 AM. Reason for edit: No reason given.