Just finished the Northover Projector by Stronghold Miniatures for my Home Guard.
I've used a leftover bit of wall from the Blacker Bombard on the base & a metal box that I'd picked up somewhere
This is basically a tube on a tripod, If you do search about on you tube for Pontefract Home Guard they have on & are doing a firing demo.
There are no rules for it in the Bolt Action game so I'm thinking of proxying it as a Piat.
I will start photographing the rest of the previously painted Home Guard that I have & post them.
I forgot to put these 2 spare crew, that came from another Northover Projector that I bought for the crew figures