My gt uncle was in the REME, but this letter shows RASC, what I want to know would he be classed as cheshire regiment or attached to the cheshires whilst with the REME or RASC? I'm awaiting service records but can't work out wether somone can be in the cheshire regiment and still be REME or RASC? He died in 1947 as a result of water contamination in the desert theatre. I have attached an image of a letter which shows some details of his situation. Anyone know anything about No.1 Adv MTD ?