At first glance this spool looks like it is from outside north America, but it is in fact a Hemingray made (no name) spool! Dario Dimare assigned it CD 1058 at the Springfield show.

Rodger Lucus found a chunk of one at the Hemingray dump in the classic Hemingray ice blue. In the meantime Andrew Gibson came up with a whole example! The shard and the spool were compared at Springfield an it’s a match!