This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Wagner Electric Mfg. Co. Net Price Calculator MIT Slide Rule Collection DSC. en MIT Slide Rule Collection MIT Museum Cambridge Massachusetts USA The museum permitted photography without restriction own Daderot cczero MIT Slide Rule Collection Uploaded with
Page 2023 Free-images.com. All images are Public Domain