Howdy gents,
I much appreciated seeing those pics of the Burgess shotguns. I took one all apart several years ago for a client, ultrasonically cleaned and lubed it, fitted an original main spring and put it all back together into a fully functional arm again for him.
Needless to say, no exploded view or breakdown description could be found at the time, so I was on my own. While I had it all apart, I took 84 pics of it from just about every standpoint I could then conceive of. I had intended to post those pics on my FLICKR web site in my 'Just Out Of Curiosity!' collection, but I had never gotten around to it.
Upon accidently running onto this post today, it spurred me into action to 'get 'r done' so that some of the intricacies of this most interesting mechanism could be seen by those with an interest. This link should take you right to it:
https://www.flickr.com/photos/cgm-gunstockcheckering/sets/72157703706384894/On FLICKR, click on any of the small pics to enlarge them on a gray colored field, and a captions appear underneath in the white area.
