Bertrand regularly offers very interesting books ... but concerning Hahlo I really recommend the purchase of the book from my friend Thomas Hemmann (dv. given link below; although it's in German you may see the colored original (!) plates of the Hahlo manuscript.
And regarding the - very expensive (rare) - volume of the Terrel des Chenes edition of the Suhr manuscript I would prefer the original one I made photos of and published on the Napoleon online site at http://www.napoleon-online.de/suhr.html
btw: I updated the list of contemporary uniform series with some additions (e.g. Thomas' really valuable books) and will incorporate the series mentioned in the Sabretache catalogue soon - just check at http://www.napoleon-online.de/uniformserien_zeitgenossen.html
Greetings from Berlin