A fine period shot of DMO 320 (contributed by Chris Stanley, photographer unknown)
Peter Relf has added the following information:
"DMO 320, AEC Regal O662.4583 Duple 45107, B35F, new 1947 to Newbury and District, 1950 to Thames Valley.
The location is Castle Square, Caernarvon. I believe it was operating for Hughes, Rhostryfan. There were 10 of these attractive vehicles (DMO 320-9) and a further eight with coach seats. It is a great pity that none have survived. DMO 326 ran in the same area - with Purple Motors of Bethesda."