My ICT 1301 (built 1962) has a sort of sand finish, a bit like very
fine wood chip wallpaper. On the underside of one of the top covers
they missed some of the top coat and I can see the texture was in a
primer, which barely covers the metal. In the next couple of years I
am going to have to respray some areas where the covers have been
scratched, another where I've spot welded some changes and one where
the roof leaked and the covers have rusted through. Good job I'm also
a classic car restorer, but I've never come across sand texture paint
on a car, not even on my Land Rover recovery truck. If anyone happens
to know anything about sand finish, I'd love to know.