For your consideration is a Vintage Imperial "Trick Magic Knife" Pocket Knife.I liked this knife before I knew how cool it really is. First trip to the auction and no one could open the knife. Next week it was still there and it was open. But then it wouldn't open again. Had to be something wrong with it but I got it any way. Played with it quite a while before I figured it worked just as designed. Amaze your friends with this magic little knife. It has a special locking mechanism that opens the knife just far enough to pull open (see picture #3). When you're done it locks back in place. It all has to do with the little hook shape close to the base and how you hold it when you lock and unlock it (I'll tell you if you don't know). Condition is pretty good for a 50+ year old pocket knife. Celluloid has some surface scratches and a small crack on one side. Blade has an unsual shape compared to other examples. It's sharp but could use a proper sharpening next time around. Thanks for looking. Shipping cost is to the lower 48 US. For any other address please wait for an invoice before paying. We'll gladly answer pre-sales requests for shipping estimates to other areas. We tend to buy and sell things that we like. We may not be experts on everything we sell but we try to be honest in our listings. We encourage you to carefully review any item you are interested in before making an offer. We are more than happy to answer any questions or provide any information we can. If you spot an error or have other information on one of our items we'd love to hear from you. If you want to order more than one of our items I'll be glad to combine shipping if the first has not yet shipped. A note about shipping. We do all we can to keep shipping costs low while protecting items we ship. We try to use recycled boxes and packing materials whenever possible. If flat rate postage is the best rate we will use that. If our shipping charges reflect a higher price than the actual postage that's just to help cover the extra expense of time and materials to safely ship your item. We never expect to profit by adding extra expense to our shipping charges. If there are particular items you're searching for let us know and we'll keep our eyes open.