| Original/Reproduction | Original |
|---|---|
| Time Period Manufactured | Pre-1930 |
| Country of Origin | United States |
Check the listing for details. Antique Robertson Thompson Improved Steam Engine Pressure Indicator Tester. Made in United States. Listed at 114.95 USD. This item is as described above. It was manufactured to test pressure inside steam engine cylinders. I am unsure as to exactly how it works. The case measures 10 1/2" x 9 1/2" x 7" tall. It includes the manual, which was published in 1910. It is untested and I am unsure if it is complete. The key is missing. Please examine the pictures, they tell the story. Selling as-is.
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