Photo: Land Line Telephone with a Keypad Lock

You probably had a land line Telephone or your neighbours had one that you could use to mainly receive calls from relatives and friends. The only way to prevent outsiders to make calls was to either hide the phone which was very impractical or use a keypad lock such as this one. The key to the lock used to be hidden right under the telephone itself in most households. Do you remember seeing a lock like this one?