Yes, Stuart I was lucky to come across 'Genevieve' in Kodachrome and again in IB Tech. The 1950''s Kodachrome print was gorgeous colour and comparable with the Tech version I finally progressed to.
I have had three prints of 'Henry V' over many years starting with a faded-to-pink Eastman print from Budget Films and then upgrading to an excellent LPP colour print from Ken Durbin out of Dalas. Finally an original British IB Tech print without the hideous damage and out of sych sound of the previous Eastman releases from the Rank labs 1970's dupe. These have the dedication to the troops title card at the begining, a torn frame when Harcourt Williams as the French king crawls around his palace floor. Worst of all is the mutilated sound track - (a finger caught on the sound roll?) during the rousing Agincourt song near the end. You can hear a momentary wow and flutter at this point and then the soundtrack goes miles out of sych then silent during the reprised overhead model shot of mediaeval London to the end credit. This seems to be the USA version that somehow came back via the BFI and I have watched same botched version in 35mm in a regional film theatre. I can only guess that this flawed version was hurriedly done for wartime USA release for propoganda at the time of D-Day?
Having watched my two Eastman prints and in the cinema it was a delightful shock when I ran my IB Tech Henry. Watching in anxious anticipation for the familiar flaws that do not occur on my print. No added dedication title, no torn frame, and the music running as it obviously should to the end title.
It seems that through our film hobby, owning various 16mm prints and being observant, we can uncover changes to important films that national archives have missed or choose to ignore?
Ian