Federal glass dating
It was distributed through jewelry and department stores from the 1920s through the 1950s, and was an alternative to fine china.
Most of the Elegant glassware manufacturers had closed by the end of the 1950s, when cheap glassware and imported china replaced Elegant glass.
Popular and expensive patterns and pieces have been reproduced, and reproductions are still being made.
Often confused with Depression glass is Elegant glass, which is of much better quality.
From 1981 forward all bottles in the USA started carrying metric (ml, liter, etc.) statements.
They fully came into fashion around 1985, but began popping up in the late 70s and early 80s.
Whether you’re trying to date a bottle of bourbon or determine the relative age of a dusty bottle of Scotch the process for US bottles is pretty much the same; it’s a matter of looking at clues and narrowing down possibilities.
Kind of like playing a game of Clue, except with booze.
Perhaps manufacturers believed that consumers still shared this view and lead them to include their own strip once tax strips were no longer required.
(via Walter Hurst) If you’re lucky enough to score a dusty bonded whiskey your job is even easier because the green tax strip will state both the made (distilled) and bottled date.