Antique Keuffel & Esser K&E Mannheim Slide Rule Pat. 1900 20 / 10 New York NY
To all of my customers. You will receive the exact item(s) shown in the pictures. I usually put a ruler in the pictures for size reference.
If I see any defects I will show them (any defects missed are accidental). Happy customers are return customers. I have a 100% Satisfaction policy. I will resolve any and all issues to my customers benefit. The longer I have an item the higher the discount! I sell mostly one of a kind items so if you see something that is a really good deal you should grab it!