Hi David
Thanks very much for the info .After contacting Odyssey via emails they were able to confirm that I had a 504 and not a 54. I was then able to purchase a Multi format carrier from ebay. Considering the vendor and myself had no idea that the enlarger was a 504 and not a 54 I am delighted as it only cost 20 with two Rodenstock lenses.The carrier 21 so all in all a very
cheap enlarger in very good condition. Thanks once again

Regards Norman