Regarding this pilot Malcolm Eric Edward Roberston. Where would no. 4 EFTS have been. By this I mean which station and which country. And also the same question for 3 FTS.

I am doing a little research for a relative of this airman.

Can anyone confirm what Att Duston 1-4 August means.
I think it may mean Ouston which was the base where 243 sqn was based at the time. I could be wrong as why would he be attached to the station?

Any other help or information on this pilot would be helpful.