Here's an interesting page from this calendar tool, printed in Leiden in 1756, for use in calculating the molad for kiddush ha-chodesh. What I find particularly interesting are the chosen cities, from Alexandria in Egypt to London to Lima, Peru to Siam to Paris. Warsaw and Stockholm are there, but not Vilna. Also of note is that the designation Yavan "Greece" is used instead of Russia (or Rusland).
Here is the title page, which gives the author as Raphael Halevi Hanover. From the stamps you can also see that while it ended up in the YIVO Library (and made it to New York, where it was scanned by hebrewbooks.org) but prior owners included the Library of the Great Synagogue of Vilna, S. J. Fuenn - it is inscribed as a gift from his father-in-law Mordechai Nathansohn - and another stamp which is hard to read, but I think may plausibly read Daniel Jaffeh, who is otherwise known as Daniel Itzig, famous 18th century Court Jew and patron of Jewish learning; he founded the Berlin beit hamidrash frequented by the Pri Megadim, Isaac Satanow, and others. But of course I can only read "Daniel," the fact that the Latin initials are "D. J." and that it looks like the Hebrew surname is three letters, which may be yud-heh-feh.