Circa 1930's - 40's.. There were aluminum and plastic made tokens. You have the Sales Tax Token. There was a Luxury Tax Token also.
These were made between 1933 and 1938 though I don't know if there is a way to nail down the date any further.
http://www.brianrxm.com/comdir/cnssalestax_alabama.htm This site does not give the years but shows you the different types of these tokens.
From the color of the token in your photos, I am leaning towards it being made of zinc rather than aluminum. If I am correct, the ID is AL-S4B. The suffix B is because there are two major die varieties, and yours is the "B" type, where the distance between the right foot of the "1" and the "D" in Department is 1.8mm. This token has an R-3 rarity rating, with 501 to 2000 specimens known, and is considered common. These tokens were used between 1939-1941. They were made by the Osbourne Register Company, but the mintage is unknown. If your token is made from aluminum, then the ID is AL-S3B. The rarity rating would then be R-1, with 5001+ known, and would be considered very common. Alabama produced 19 types of tax tokens, and they were made from the materials aluminum, zinc, brass, fiber (brown-gray, gray-brown, light gray, charcoal gray, gray, red-brown, very pale blue, and dark blue) and plastic (typically carmine, but there are various shades of red depending upon the plastic mixture the dye used at the time of manufacture).
