This is a crumb knife. There is usually another "knife" section, or a brush that accompanies this piece, and it was used to sweep crumbs off of the tablecloth.
The major score was multiple pieces of two different grape patterns from the early 1900s. Beautiful pieces! Look for them as bracelets in the shop in a week or two.
Have a great week! Don't forget to visit the shop for last minute Thanksgiving day hostess gifts - there are still a couple of Thankful knives left!