I have begun a study on the very rare canvas Spare Part Kit (SPK). As we all know, the existence of this kit was highlighted in Roger Cox's now classic 1982 book. Only a few original SPKs are known to exist. Unfortunately, this very rare Thompson accessory was faked and copies sold many years ago. Pictures of a few variations of these rare canvas SPKs and information on the faker can be found in the below thread: http://www.machinegunboards.com/forums/index.php?showtopic=21457 A big thank you to Nick for sharing pictures of his canvas SPKs on the forum. I believe I have found something noteworthy with these canvas SPKs but need to examine via pictures a few more. If you have one of these canvas SPKs in your collection, marked or unmarked, fake or not or not sure, would you reach out to me via PM so we can start a dialog. I have spoke to several members on this forum and they have been most cooperative. If you have a canvas SPK, please send me a message or post on this thread. Thanks!