Handwritten Calendar Wheel for Daily Times

Handwritten calendar, for times of "Alot Hashachar", sunrise and chatzot. [Oriental scribal writing and Oriental soletreo writing, Jerusalem?], 1868.
The calendar is made on a wheel for several years' use. It is for the autumn months of Tishrei-Kislev, September-January for the English [Gregorian calendar?] and Greek [Julian calendar?]. [The times of day differ from year to year in the Hebrew calendar which is determined by the lunar months. Therefore, the times of sunrise and chatzot can only be determined by the European calendar that is calculated according to the solar months].
Another note is pasted at top of calendar with various contradicting dates. [Apparently, the calendar was written in autumn of 1867, as indicated by dates counted from Creation and the destruction of the Beit HaMikdash].
37.5x46.5 cm. Wheel diameter 21 cm. Fair condition, damage with omissions and stains. Ottoman bullet stamp on paper.