Pretty sure it's a Minitrix. But nothing says "Retro" n scale like tight curves, tall rails and a terminal track!
I laid it out on a painter's canvas (it was handy) but I have some scraps of plywood out in the garage that will ultimately become the base. I have another 30 degree crossover or two, as well, so I'm toying with building a double TTrak module with a retro theme... I'll have to tune up that old double slip to make sure it doesn't get me booted out of the club, though!
Lee