1. Columbia University Rare Book & Manuscript Library, MS X893 K172 DS ID: DS19011 Title: Sefirat ha-ʻomer Place: Italy Date: 17--
2. Columbia University Rare Book & Manuscript Library, MS General 323 DS ID: DS19442 Title: Sefirat ha-ʻomer Author: Jews Place: Trieste and Italy Date: 1836.
3. Columbia University Rare Book & Manuscript Library, MS General 339 DS ID: DS19453 Title: Sefirat ha-ʻomer Place: Europe Date: 19th century.