{"product_id":"chrstoph-ehrenfried-1724-calendar-moon-phase-round-sliding-chart-in-bronze","title":"CHRISTOPH EHRENFRIED 1724 Calendar \u0026 Moon-Phase Round Sliding Chart In Bronze","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eAntique round portable equinoctial dial by \u003ci\u003eChristoph Ehrenfried\u003c\/i\u003e.\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eThis is an exceptional and exceedingly rare 18th-century German pocket calendar and lunar-phase calculator, traditionally known as a \u003ci\u003eTaschenkalender\u003c\/i\u003e or \u003ci\u003eMondphasenrechner\u003c\/i\u003e, dating to 1724. Executed in finely engraved solid brass, this ingenious portable scientific and calendrical instrument combines the functions of a perpetual calendar and lunar-phase calculator within a compact circular format. The instrument consists of a series of concentric rotating rings, meticulously engraved with Arabic numerals, Gothic lettering, calendrical scales, and instructions for determining dates, days of the week, and the changing phases of the Moon. The upper inner arc displays the days of the week in characteristic early German orthography: “Sontag, Montag, Dinstag, Mitwoch, Donnerstag, Freytag, Sambstag.” The numbered scale from 1 to 30 corresponds to the days of the synodic lunar month, allowing the user to follow the lunar cycle and determine the approximate occurrence of the new moon, first quarter, full moon, and last quarter.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eParticularly charming is the poetic German inscription engraved around the perimeter, including the instruction “wie das mondlicht zunimt und erlischet…”, meaning approximately \u003ci\u003e“how the moonlight increases and vanishes…”\u003c\/i\u003e The combination of practical calendrical information with beautifully rendered Gothic lettering gives the object both scientific importance and considerable decorative appeal. The reverse is signed and dated “\u003cb\u003eCHRISTOPH EHRENFRIED KNABE AURIFABER FECIT AO 1724\u003c\/b\u003e.” The Latin phrase \u003ci\u003e“Aurifaber fecit”\u003c\/i\u003e translates literally as “the goldsmith made [this]”, identifying Christoph Ehrenfried Knabe as the maker and establishing the date of manufacture as 1724. The instrument is fitted at the top with two jump rings, allowing it to be suspended or carried as a personal pocket instrument.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eA remarkable survival from the early 18th century, this calendar demonstrates the period's fascination with the measurement of time, astronomy, and the natural cycles of the Moon, while simultaneously reflecting the exceptional engraving and metalworking skills of the German goldsmith-instrument maker. A museum-quality and highly desirable collector's piece, this rare 1724 \u003ci\u003eTaschenkalender\/Mondphasenrechner\u003c\/i\u003e is an extraordinary example of early German portable scientific craftsmanship, combining functionality, historical importance, sophisticated engraving, and exceptional visual character.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eCountry\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Probably in Augsburg, Germany.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003ePeriod\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Early 18th, 1725.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eManufacturer\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Christoph Ehrenfried.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eMaterials\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Engraved semi gilt bronze and iron.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eCondition\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Looks to be complete and functional. In original as found condition, not polished and retains all the original aged patina. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eWeight\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: 98.85 Grams, (0.10 Kg). \u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eMeasurements\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Diameter is 85.60 mm, (3.37 Inches).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eHallmarks\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: Stamped and engraved with Arabic numbers and text in gothic letterings, the maker's name, the date and the text as follows, \"\u003cb\u003e\u003ci\u003eCHRISTOPH EHRENFRIED KNABE AURIFABER FECITAO 1724\u003c\/i\u003e\u003c\/b\u003e\".\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cu\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eCondition\u003c\/span\u003e\u003c\/u\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003e: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eThe overall condition of this \u003cb\u003eAntique equinoctial dial by \u003ci\u003eChristoph Ehrenfried \u003c\/i\u003e\u003c\/b\u003eis very nice. Beside the normal wear there is no damage. This piece was carefully inspected to guarantee the condition \u0026amp; authenticity.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 11.0pt; line-height: 115%; font-family: 'Times New Roman',serif;\"\u003eINVENTORY REF: D090326MTTR\/.7945\u003c\/span\u003e\u003c\/p\u003e","brand":"Treasure Fine Jewelry","offers":[{"title":"Default Title","offer_id":42705127735378,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0061\/4442\/6057\/files\/IMG_4194-2_a511e4e7-cff3-40ca-a42e-85e1cec7f821.jpg?v=1790103320","url":"https:\/\/treasurefinejewelry.com\/products\/chrstoph-ehrenfried-1724-calendar-moon-phase-round-sliding-chart-in-bronze","provider":"Treasure Fine Jewelry","version":"1.0","type":"link"}