I have several double dolphin head keys. More uncommon in this catagory are ones with a flat bit as opposed to the usual tubular bit. I have two of this type.
I understand that it is unlikely that the code stamped on the bit may have anything to do with when they were made, but is there any way to tell what the intended application was?
Both are stamped Eagle Lock Co Terryville, CT. The first is stamped 14CQ1 and is punched for the lock on one side of the bit only. It is 2 ½ inches long, tip to tip. The other is slightly longer at 2 13/16in and is stamped 74KJA12. This bit is punched identically on both sides of the bit. Is that so the key can be inserted in the lock either way? The second key happens to work in an Edison Amberola 1A cylinder player cabinet. I have not found anything that the first key works in yet.

