Thanks for all the replies. It seems that I have got the slots in the right place so I have carried on assembling them.
I got four of these kits from my uncle's estate plus one that he had made so I thought it would be nice to finish them. However on all four kits the valves (parts 60 and61) were incompletely moulded and were just stubs so I will have to make them from bits of wire etc or see if I can salvage any bits from the ones I made when I was a kid.
As mentioned above they were wonderful kits and still look good today, I have just fitted metal wheels and bearings and some weights, three pennies in each hopper. Just smoothing out the silo seams and they will be ready for painting although looking at photos the welding was a bit rough and the joints are quite visible.
Just a couple of questions:
Kylestrome - where did you get the transfers from they look really good
And secondly how were these used, ie in block trains or small numbers, as I would like to use them on a layout set in the East Midlands.
Thanks for the interest.
Tony