I went on a trip to Ireland and did some beachcombing. I found these nesting bait jars on the beach at Ross Beigh. They are set in a crab trap. The crab sits there for awhile until he gets the bait out (he never does). The white one says “Scotty Crab Diner nesting bait jar made in Canada. On the bottom it says “Scott Plastics Ltd Sidney BC Canada.nest bait jar