I found a picture in google images which purports to be the LST 420. There is also a picture on there showing three LSTs with doors open. The last one could be the 420 - you can see the last two numbers on the picture. If you can't find them, I will post them once I have found out how to do it! Ally Would be interested to see that or quote the reference in case I can find it anyway. LST420 seems to have been camera shy.