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There may be some in grandma’s attic, or still in her china cabinet.
You can fill out your collection through online auctions sites if you need to.
Manufactured from the early 1940’s to the 1970’s by the Anchor Hocking company, this affordable collectible glassware can be found at thrift shops, flea markets, and yard sales at very reasonable prices.
Some older molds would still be in use as the new ones were put into production.
The result was that authentic Fire King pieces made at the same point in time may or may not be embossed.
I have a few pieces that I know are the new stuff, so I will no longer use them in the oven or microwave, just the fridge.
However, I have a few that I don't recall when I bought them.