This came from an old magic and novelty shop buy-out. What appears to be a small switchblade knife is shown but when the button is pushed instead of a knife blade appearing what they see is a pen.
The pen no longer writes as the ink has dried up from age. Still make for a neat vintage novelty to add to your collection.
Measures 2 inches long when closed and 3.5 inches when opened not counting the length of the key chain itself.
Note: Comes with its original clear packaging envelope and card.