The Thompson book arrived yesterday and very interesting it is too. There doesn't appear to be any mention of the transit chest in it from what I can see but it is well worth the £20 it cost me from Amazon. I notice on the back cover there is reference to a Thompson bayonet but apparently no images of it in the book. I wasn't aware that a bayonet was ever produced for the Thompson; does any-one own an example or knows of one in a museum, please?