Not too long ago we posted here and several other places about the unusual Lego bricks BobG found at the Flea Market. In addition to all the usual places I emailed James Foulds Community Operations Manager of Lego who I met at the recent Brick Magic festival this Spring. It took him a while but we finally got as close to an official answer as you can possible have – from Lego itself.

Anthony,

Sorry about the long delay in responding.  To answer your question, they were made by Samsonite:

http://www.miniland.nl/Historie/legoautos/samsonite/samsonite%20jumbo%20bricks%20eng.htm

Cheers,

-Jim

James Foulds
Community Operations Manager
Community Dev. Americas & Australia

So now we know 100% that these are real Lego bricks. Thanks to Jim for the confirmation.