In 1920, Savage offered the front sight with German silver bead, gold colored bead, or ivory bead. All three appear to be the same height. In 1922, it was only the German silver bead that was listed I believe.
Savage didn’t list tang sights in the catalogs or price lists as options at that time. I’m not sure you could order a tang sight from the factory.
“
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