Hebert's 2024 Catalog of Plate Number Singles has arrived.

It is massive, almost 2 inches thick. Three times the size of my dog-eared 2007 edition. It is even bigger than the last US Scott Specialized catalog before they removed the Proofs and other sections.
I like that it is in a checklist format for every plate number and position known. Durland has checkboxes for some catalog numbers and positions, but lists many issues with just a big paragraph of plate numbers rather than checkboxes for every number and position. I'm sure they do that to save space, but it makes it impossible to use Durland as a complete checklist.
The 2024 Hebert also lists many sub-types based on the location of the plate number in the selvedge. For example, Scott #300 top plate #2916 is listed as a Type I if the 9 is above the D, and a Type II if the 9 is above the S. I am guessing this is because the plate number isn't in exactly the same position in the upper left and upper right panes of the sheet. The previous catalog listed just 4 positions for this stamp (T L B R), and that's how I collect them. Now there can be up to 6 variations for each plate number. I'm not sure how I feel about this. I shudder at the effort to go through all my duplicates to look for the new types. Some catalog numbers that I thought were complete are no longer complete. On the bright side, I will never run out of new things to collect.
Curiously, I don't see any separate types listed for left or right numbers, only top and bottom. I haven't read the introduction yet to get all the details. All-in-all it is an impressive work.
Available from the Editor via
ebay.
https://www.ebay.com/itm/166489967346More details from the product announcement:
The all new 2024 edition of the Hebert's Catalogue of Plate Number Singles is now available! Features in the 2024 edition include
792 pages over 200 pages of new listings
All new issues through the end of 2023
All new Scott listings tagging varieties, special booklet paper, more
Thousands of price changes
Over 7,000 additional listings of plate position types
Hundreds of plate position types for modern issues, booklet singles
Greatly expanded back-of-the-book sections, including PNS for revenues, documentary,
proprietary, stock transfer, wine stamps and more
Expanded listings for overprints for use in U.S. possessions Cuba, Puerto Rico, Philippines, Guam
Expanded PNS listings for all Canal Zone issues, both U.S. overprints and regular CZ issues
Same large print format for easy readability
Pre-punched pages easily inserted in your 3 ring binder
Use as a reference, inventory checklist, want list