The latest issue of the Tyndale Bulletin carries Kim Phillips’s essay, “A New Codex from the Scribe behind the Leningrad Codex: L17.” According to the abstract,
Samuel b. Jacob was the scribe responsible for the production of the so-called Leningrad Codex (Firkowich B19a), currently our earliest complete Masoretic Bible codex. This article demonstrates that another codex from the Firkowich Collection, containing the Former Prophets only, is also the work of Samuel b. Jacob, despite the lack of a colophon to this effect. The argument is based on a combination of eleven textual and para-textual features shared between these two manuscripts, and other manuscripts known to have been produced by the same scribe.
Phillips acknowledges that definitively linking the scribes of L and L17 isn’t entirely possible. But, he helpfully marshals several different lines of evidence to suggest the strong possibility of this connection.