The Douglas E. Goldman Jewish Genealogy Center at Beth Hatefutsoth
published the photos of the pages >from the Creglingen mohel book.
If your ancestors lived in Creglingen, it's worth to look for their
names in this book.

Sefer Sod HaShem by David ben Aryeh Leib of Lida (ca. 1650-1696),
Amsterdam, 1771 with handwritten notes by Beniamin Hirsch Klein of
Zeilitzheim, a teacher and mohel in Creglingen, Germany, the original
owner of this copy.

http://www.facebook.com/pages/Tel-Aviv-Yafo-Israel/The-Douglas-E-Goldman-Jewish-Genealogy-Center-at-Beth-Hatefutsoth/50738968849

-- Leon Kull Yehud, Israel napobo3@...