Print Specifics:
- Type of print: Steel engraving - Original antique print
- Year of printing: not indicated in the print - actual 1844
- Publisher: Georg Heck
- Condition: 1 (1. Excellent - 2. Very good - 3. Good - 4. Fair)
- Few short smudge 'streaks' in lower left quadrant of print.
- Dimensions: 9 x 11.5 inches (23 x 29 cm), including blank margins (borders) around the images.
- Paper weight: 3 (1. Thick - 2. Heavier - 3. Medium heavy - 4. Slightly heavier - 5. Thin)
- Reverse side: Blank
- Note: Green color 'border' around the print in the photo is a contrasting background on which the print was photographed.
Legend to the illustrations in the print:
- Figure
1. A lift pump 2. A forcing pump 3-6. Stephenson's double action pump 7-9.
Pump used in the mine Huelgoet in Normandy 10-12. Letestu's pump 13, 14.
Jordan's hydraulic ram in Clausthal 15-21. Reichenbach's hydraulic ram
in the saltworks at Illfang in Bavaria.
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