From the black laquer and serial number I'd say ca. 1922-23. To tell more - does it have a metal bridge, dot markers on the fingerboard, a pickguard, a cover on the tailpiece, any obvious plastic adornments, any writing or inlay on the headstock, and is the head stock pointy-shaped like a snake's head? Is the case made of thick leather? Is there any writing on the bridge, tailpiece, or machine heads?