Make sure to check out all of my auctions after you look at this one. I’m listing another eclectic selection of mechanical, technological and musical antiques, and I suspect that there will be something to interest just about everyone. Here’s an ancient and scarce Diehl bi-polar motor/fan. Judging from its appearance, it was probably manufactured in the early 1890’s. Condition is excellent throughout. The armature moves freely and the shaft is straight. No damage evident to any of the parts. No cracks in the casting. Windings are in excellent condition. The blade is in excellent condition, too. It can probably be made to work by someone familiar with its design, but when I apply 6v DC to the binding posts, it does not react. Without the blade mounted, the motor is about 7 high. That’s about it. The item “Excellent 1890 Diehl Bi-Polar Motor Edison Bipolar Fan & Dynamo Era” is in sale since Sunday, August 07, 2016. This item is in the category “Collectibles\Kitchen & Home\Electric Fans”. The seller is “firebottles” and is located in Chapel Hill, North Carolina. This item can be shipped worldwide.