[Boulevardier]

This scale (7.8cm x 4cm) is from a small transistor "world" radio. It is on soft plastic and has no panel behind it when mounted. It has become distorted over the years - so much so that it is fouling the straight wire pointer that sits above it. It is held in place in small slots in plastic pillars - one at each corner. The plastic scale is about 4mm thickness, and there wouldn't be room to fit a stiffening panel behind it. I'm trying to think of a way to get it back to its flat original shape without damaging it. I wondered if applying a cool-ish iron to the back would do the trick - but I don't want to damage it further with the heat. Any thoughts?

Mike