A peer-reviewed review of the leading Fabriano-papermaking monograph gives the earliest watermark evidence as a 1282–1302 range, not a fixed year

Sylvia Rodgers Albro — senior paper conservator at the Library of Congress — published Fabriano: City of Medieval and Renaissance Papermaking (Oak Knoll Press, 2016), assembling archival and beta-radiographic evidence for Fabriano's papermaking origins; it is treated as the leading recent scholarly monograph on the subject. A peer-reviewed review of the book in BioResources (Olivia M. Lenahan, 2017) reports that the monograph's evidentiary anchor for "some of the earliest watermarks produced in Fabriano" is "an image of a notary from 1282-1302" — a twenty-year range, not a single fixed year.

This is one layer removed from Albro's own archival citation: the vault has the review, not the monograph itself, so it corroborates the pattern found elsewhere rather than anchoring it independently. It is nonetheless a third, distinct line of evidence — Library of Congress conservation scholarship, rather than Briquet's catalog or Fabriano's own archive — landing on the same conclusion: the earliest datable Fabriano watermark evidence is approximate or ranged, and 1282 sits, at best, at the early edge of a range rather than as a confirmed single year. See claim-briquet-1907-catalog-title-hedges-fabriano-date-as-vers-1282 and claim-fondazione-fedrigoni-archive-dates-earliest-fabriano-watermarks-to-1293 for the other two lines, and claim-watermarks-originated-as-papermakers-mark-in-fabriano-1282 for the claim under scrutiny.