I have searched high and low for my 3mm lettering and finally found it.
Safely sandwiched between some plastic moulded brick arches, I have lost count of the number of times I have looked in that box.
However, these Slaters letters are just the right size for GW station running in boards- indeed examples of my work exist on Hennock and Nigel Cullimores St Levan.
Easy to clean up whilst still on the sprue,and with a guide line scored on black plasticard, it's just a matter of detaching each letter and , after lining up, a swift lick of MEK and it's done.
The surround is lengths of square microstrip cut to size and applied in the same way- Time taken? About 30minutes.