If you look at the very early pricelists and catalogs for the 99's you'll see that they are still listed as 1899's.
Which means the 1920/1921 1899H according to the pricelist or catalog is actually what we call a 99H and NOT the original 1899H.
To prevent massive confusion everybody has always called the new models 99's.
“
The Savage 99 Pocket Reference”.
All models and variations of 1895’s, 1899’s and 99’s covered.
Also dates, checkering, engraving.. Find at
www.savagelevers.com