I've had a seasonally bad run on ebay recently, with continual eleventh second snipes snatching away bids. But just last week, I was pleased to win a trio of early Sixties toys.
Sold as a job lot, I got a Marx Rocket Launcher, a small plastic Jaguar (?) and a lovely Triple Dart Jet Gun.
The car is missing a wheel and windshield, the rocket launcher has some damage, but the gun is intact. Although the darts are probably lodged in a gutter somewhere, the gun is pure jet age deco, with swept delta and long barrels. Im almost certain it was rolled out later in the sixties as part of the Batman line.