1970's Snoopy Bicycle Combination Lock In Original Package

This vintage Snoopy bicycle lock is unused and still in the original package. The packaging has some wear and fading but is still neat for display. The card has a copyright date of 1958 United Feature Syndicate, Inc. on it, but I believe it may be from around the 1970's. 

Do you remember back in the day when you used to lock your bike up with one of these? This is such a tough to find Snoopy collectible!