The half octagon is a Savage 1899C. Looks like it's been sanded and refinished, so while it's cool.. it also has no real collector value.
The 1899A had a 26" round barrel and crescent buttplate as standard, the 1899B had an octagon barrel, the 1899C had a half-round/half-octagon barrel. The 1899B and 1899C were made up to WWI.
“
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
