- A Woodward Governor Company 3161 series governor.
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- 3161 2
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- 3161 3
- Photos from Natco Governors Specialist Company. 5
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- Photos from Natco Governors Specialist Company. 9
- Photo from Natco Governors Specialist Company showing a Woodward PG series control.
- Photos from Natco Governors Specialist Company. 15
- Photos from Natco Governors Specialist Company. 16
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- Photos from Natco Governors Specialist Company. 18