Another tiny but interesting and useful snippet Jon. Many thanks! Now, any photos...?
Without wishing to stray off topic, the CTC were a bit of a law into themselves. I was in touch with a former CTC member years ago and he said on one occasion two members turned up one day with privately made breast badges on showing a US star with red centre and lightening flashes each side. Although the CTC title was official most seem to have preferred a USA title instead. Peaked caps with the CTC badge were issued in the US along with a black silk armband before they received Airmans uniform in the UK. Buttons were a black composite material which apparently fell apart the first time they got wet!
Check the IWM website as they have a series of official CTC photos.