Round staples, a seam on the bag--Hmmmm.
I have never seen this one before.
https://www.ebay.com/itm/195706073869?hash=item2d90fdb30d:g:7-YAAOSw9bNkNqfP&amdata=enc%3AAQAHAAAA4Lp1W2NddTXGetnjO50n6gw2rcfQ95NcnQaL1mVY60nPr%2Fwndc0J9FOhkg9kmPfFQTvsKMkb6AuDta91X74DaABZWK2UJ%2FuY6r4qibvHWP5Ddn606nDxNYpdnGq9qnwgbShrEJs1xXF4fTXYIDyi7dKWxuAZOVWGWRGlkvuxpzZKYNsZofkrT96cKo2awf6gWICX2vFvhSz63rZE87oyufnPj2PykJ3xJfuNdf5anP0u1Pb7SWYFVxq%2FqYwJgborLP4tSnLwHm6uQjxIWUF6qJEwnOr94QftAO3hXNhDEpaL|tkp%3ABk9SR_y7vuXuYQ
Marble--on!!