A Redditor once asked me where I track manuscript and rare book prices. I summarized my answer into "Tier 1" houses, Regional houses, online bidding platforms like Invaluable that basically "aggregate" most regional houses, and eBay. But the answer of course is much more detailed. This
Northern Italian
Auction Execution Mechanics and Psychology Matter
Informational
The intersection of Art and Book collecting/studies
Spanish Forger
The Master of the Spanish Arrival: a nod to the Spanish Forger and the JHU Bibliotheca Fictiva Collection that identified this as a distinct forger.
Psalter
When Better Scholarship Doesn't Raise Prices: A 2026 Case Study in the Manuscript Middle Market
Northern Italian
Visual Art trumps Context
