While cataloging today, I got the chance to research this little glass sherd, or fragment, which packs a big punch as far as its history goes. Though Prohibition officially ended in late 1933, the Temperance movement did not; so, on the 1st of January 1935, all liquor bottles were required to have FEDERAL LAW FORBIDS SALE OR RE-USE OF THIS BOTTLE embossed on their panel, until of course this too was repealed in 1964.
Unfortunately, not all venders could afford to keep up with the times and change out their machinery, meaning the end date of 1964 is not as solid as an archaeologist would want. Note: this requirement pertained only to liquor bottles, not wine and beer bottles, as it was supposed to discourage moonshiners from re-using these materials (I guess making alcohol legal wasn’t enough of a damper for bootleggers).
For more information on this subject please visit the following websites compiled by the very knowledgeable Bill Lockhart: