The introduction of the VRT's is generally accepted as 1947 across the board. The older VRs were abolished in the RAF officially in January 1943 as by then the vast majority of RAF Personnel were VR anyway (in for the duration), the ATC being the exception, which is possibly why they got their own design.
If you have photos of the crowned circular badges in use I'd like to see them as I've not seen reference of any such type anywhere in 40 years of collecting and research!
|