Plastic Nebelwerfer, unknown brand. (#139)
T70, from the Skytrex/Hinchcliffe 20mm WW2 range (#156)
BA64 again from the Skytrex/Hinchcliffe 20mm WW2 range (#148)
Three Schwerer Whermachtsschlepper from Roco Minitanks code DB6M (could be DBGM).
They have drop down sides, but don't have whatever it was they were mounting.
I had thoughts of using them in some kind of Nebelwerfer unit,
but never progressed beyond thinking about it in twenty years.
An early 1990s visit to Brockhurst Models in California
resulted in random purchases of all sorts of things.
Sadly never even opened.
RAFM 6859 RSO German Tracked Truck.
Same visit picked up this with the same outcome.
RAFM 6860 75mm IG18 German Infantry Gun.
Thankfully they are about to find a new home with the Archduke Piccolo. Bon Voyage and may you serve faithfully.