We start with a very strange one, but great fun: Heriot Watt College (now University), granted in 1958 and presumably painted by Herald Painter, Nora Mary Gordon.
The blazon makes clear that the brickwork is the compartment while the supporters are: a beam-engine, frame Sable, cylinder, fly-wheel and beam Vert, the cylinder and wheel garnished Gules, the piston rod and garnishing of the beam Argent, guiding rod Gules garnished Argent.