1961 means a 99E if it doesn't have a cartridge window, a 99F if it doesn't have a Monte Carlo stock and does have a rear sight barrel boss, or a 99DL if it has a Monte Carlo stock.
“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