Copper-engraved map of the northern hemisphere, at the center of a large clock, surrounded by text, with mention of Zacharias Landteck. Overall 49x58 cm. (19¼x22¾") plus margins.

Unusual and striking use of a map of the northern hemisphere on a north polar projection, with California an island "with rounded northern coastline. Surrounded by sky, half lit by sun, and a ring of the zodiac figures with names of the months. All within drawing of a 24-hour table clock" - McLaughlin, who also notes that the map of the northern hemisphere is identical to that on the title-page of Grosser's atlas (1737). In addition, he states that the clock/map was likely issued earlier, perhaps 1705, citing Tooley' s Dictionary of Mapmakers, which refers to Landteck's "Geographical Clock," in Homman's 1705 atlas. The present example is the first state of the map according to McLaughlin, without the Privilegio statement.