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Description: | An incomplete cast copper alloy pocket sundial. The sundial retains all of the initial letters of each month on its outer face; I F M A M I // (inverted right to left) I A S O N D, but is missing some of the inner face numbers; 2 3 4 5 6..// (inverted right to left) 6 7 8 9 10 11. This sundial is missing the central slider. To use the sundial, the slider was moved until the square loop was opposite the correct time of the year. The ring would have blocked the slot, only allowing light through the square loop. The sundial was then held up vertically by the suspension loop and swivelled until a ray of the sun shone through the hole. A spot of light on the hour scale allows the user to read off the time. It does not show whether the time was a.m. or p.m.; presumably the user was expected to work this out himself. These ring-dials are rarely found with the slider surviving.The sundial measures 38.26mm diameter, is 10.46mm wide and is 1.36mm thick. It weighs 8gms
Original Image | Publisher: | http://finds.org.uk | Source: | Portable Antiquities | Identifier: | http://finds.org.uk/database/artefacts/r... | Go to resource |
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