- A theory of operation project for the Pratt & Whiney jet engine fuel control in the collection.
- A Pratt & Whitney TF30 series jet engine.
- Priority governor mail hot off the US mail aeroplane.
- Another great governor find!
- Hamilton Sundstrand jet engine fuel control.
- A hygrometer to test and measure the original wort gravity whlie brewing.
- A hygrometer to test and measure the original wort gravity whlie brewing.
- 99
- 4
- 187
- 3
- hvd.hn4ht9-seq 293
- THE VERTICLE MILLING MACHINE.
- 9
- Rockford, Illinois history.