This is a great old chopper marked Federal Housewares, Chicago 40 (number is hard to read) Illinois. The glass jar holds 2 cups and there are three measurement markings on one side -- 1/2, 1 and 1-1/2. The glass is clean and free from fogging, scratches or damage.
The plastic screw-on top is harvest gold in color with a flat white plastic handle or knob. The spring action plunger in the lid is in good working order and the Stainless Steel blades are clean and sharp. There is a white plastic insert on the bottom of the jar -- not usually found with these old pieces.
I cannot locate a date but believe it is from the 1960s. There is a 2-digit number (40, I think) shown in the Chicago address on the base. This could be older but I believe this is from the 1960s or so due to its retro look.
This chopper measures 10-1/2" x 3-1/4" at its widest point near the base.