The set box is numbered 48-24392 which is a Montgomery Ward serial number consistent with other reference numbers found in their catalogue. There are no indications on the box of who made or marketed it. It also doesn't exactly state what's to be found inside, but mentions "featuring" the following:
• Astronauts
• Monsters of outer space
• Rocket with friction drive
• Space tank with friction drive
• Space vehicles with rolling wheels
• Craters
• Accessories