heliograph
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
heliograph |
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| navigate by keyword : ancient antique device drawing engineering engraved engraving etching guidepost headland hedges heliograph historic historical incrust instrument interline invention lamp light mail mark object old outdoor overlay perforation plot radar retro signal sun sunrise sunset technical technological technology transfer vintage |
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| Heliograph, glass bowl, an instrument that measures the daily sunlight |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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