I am trying to piece together a display case for my children regarding their grandads war service, I have his medals, a few pictures and his collar badge. He was in the 98th field regiment RA, Sussex Yeomanry from 1939 to 1947. I need to get a cap badge but am a bit confused as to which one would have been worn as there seems to be a couple of different types. Can anyone help to ID the correct badge he would have worn also any other insignia (sewn patches), that would have been worn. Thanks!