It's very common to see the Nulli Secundus pylon flying helicopter made by Child and Smith in England. Those must have been produced in very large numbers based on the frequency with which they appear for sale.
Here's its later, but much more rare, cousin, the "Electric-Flying-Helicopter." It's also made in England by 20th Century Toys.
The helicopter is a bit more realistic looking, likely modeled after the Sikorsky S-51, known as the "Dragonfly" in the U.K.
Here's a photo:
20th Century Toys Electric Flying Helicopter