i am here today to clarify the difference because it drives me absolutely bonkers. Fire King is very well known but there is also people out in the world looking for Federal Glass. it may be mighty difficult to sell your gorgeous Federal Glass casserole with lid to a collector of that brand when you have it listed as Fire King.
the Federal Glass trademark is a capital F within a shield, as pictured below...
the Fire King trademark is simply the name written in script, as pictured below...
please keep in mind that this is not the only way to identify Fire King glass. there may also be the Anchor Hocking logo or there may be nothing at all, some pieces where not marked with anything. i think the most important thing about collecting is to be exceptionally curious. do the research and get familiar with the patterns and the dates they where produced. also investigate some of the other glass makers (federal, mckee, jeannette, glasbake) because there are a TON of companies that made very similar but equally beautiful patterns.
i hope that this will be helpful to some of you that may have a hard time finding the information you need. im no expert myself but i think we can all learn something from each other. enjoy!
