The Western Welsh Omnibus company had used a unique system for identifying the depôt to which a 'bus was allocated and up to 1948, these comprised symbols of squares, triangles, diamonds and circles coloured in black or red with thin white edging for the blacks and thick black edging for the reds.
The Western Welsh Omnibus company used a unique method to identify bus depots from 1918 until 1948. This system involved symbols of squares, triangles, diamonds, and circles, colored in black or red with thin white outlines for the blacks and thick black outlines for the reds.