lot of 4 50s vintage toy metal cap gun 'bombs'. These are old. They're marked with a patent number from 1952 and were made by Callen Mfg Corp - Maywood, Illinois. They measure about 3" long.
3 of these are marked '4' on the fins and one (far right in the 2nd photo) looks to have a slightly heavier head and is marked '13'.
These toys are nice condition with just a little wear and pitting from use.