[Sinewave]

Here's a new one for me. This is a first of its type into my collection. I'm not entirely sure which model this is, as this type of battery terminal box is usually model 2-6?

The movement needle is bent which is fine, but the scale plate has written in it Hendon Technical Institute, so it's an Avo with some provenance. It also has a fuse in the place of the mechanical cut out.

The serial is No.69-8608.