Check the listing for details. Antique Mueller Screwdriver Automatic Spiral Pat. 1889 Illinois Tool. Condition: Used. Listed at 35.00 USD. MUELLER SCREWDRIVER Antique automatic spiral screwdriverH. Mueller Decatur, Illinois Patented July 30, 1889closed length is 10 3/4" without the bit; open length is 17 1/4"has one bitbit engages in only one position; on this one, you have to push down on the keep spring for the bit to re-engage with the bit keep; then the bit stays in placegreat antique tool in very very good conditionsee all photosgreat collectiblelocal pickup or shipping optionLet me know if you have questions and I will get right back to you. Thanks for looking! Sorry...no International shipping. SHIPPING: Item will be packed carefully and shipped within one business day of receiving payment. Tracking number will be provided. NO RETURNS: Be sure to read the description and study the photos carefully so you know what is being offered. ITEM DESCRIPTION: We sell mostly used and vintage items. We make every attempt to describe them accurately and provide you with enough photos so you know what you are getting. If you have any hesitation or doubts about the item, please ask questions and do not bid/buy if you aren’t absolutely sure the item is what you want. YOUR SATISFACTION IS OUR #1 GOAL: If you are dissatisfied with your item for any reason, contact us immediately and we can work with you. Please do not open a case or send negative or neutral feedback until we have had an opportunity to work out any problems. THANKS FOR YOUR INTEREST IN THIS ITEM!!