Subject: Southend C.T. ??? (JN 211x)
Chassis: AEC 661T
Body: English Electric L24/24R
Location, Preston, Dick, Kerr works
Year: 1932

A view that takes a short while before you understand what it is you're looking at, which is the ventilator mechanisms on the nearside of the lower saloon, seen through the offside framework.

Photograph from the GEC archive