I take it that was an attempt to bring streamlining into the world of the coach as had been tried by the railways? 
Quite possibly Lizzie, though coachbuilders were keen to display opulence in their products in the post-war era.
The rear-mounted 'Dorsal Fin' was one such optional feature which confirms this.
The 33-seat Harrington body was built on an AEC Regal MkIII chassis in 1950, and remained with the Bevans' until 1980. True testament indeed to the craftsmanship at Harringtons, who went on to even greater things in the world of luxury coach design.

The other option was the 'full front' (as opposed to 'pure' half-cab), which would make access to some of the engine componentry a bit difficult:
This example has the big 9.6-litre engine up-front, and would've been quite a performer!Bought directly from the Bevans' it remains to this day with it's subsequent owner, and still puts in appearances at vintage rallies
