This is a 2 piece set of oak drawer knobs from a Singer Treadle Sewing Machine. These are the smaller knobs usually found on the 3 drawer sets with the fancy front appliques, as you can see in the last pictures. These oak knobs are in great clean condition and can replace any of your broken or missing knobs. The tenon diameter is 3/8" and the length is 1/4". The knob diameter is 3/4". These were standard knobs that should be a direct replacement for yours.
Be sure you drawers will take these smaller knobs.
Get Grandma"s old beauty looking great again.