Thanks for the response , if you have a look at TOKEN on this web site ('search page' is the easiest way) -- then you will see the TOKEN with a strange structure in front of the bridge, aft of where the gun should be . I think I now have an explanation for it and there should soon be a linked appendix added showing two men escaping from the twin gun hatches inside what looks to be the enclosure on the TOKEN pic, posted on the site in the future as the busy web master finds time. Peter http://tinyurl.com/mc7uywn