For BJC passes most are identified on the BJC wiki:
http://thebritishjugglingconvention.co.uk/wiki/index.php?title=Previous_Convention_Passes
(I photographed a few of these, as well as scanning in flyers and booklets for many of the older convention pages.)
by Richard Loxley, in response to this post 2016-01-13 14:24:29