antique lure question

My wife bought me 5 antique lures from a yard sale, she paid 20.00 for all 5, I believe they are little ikes. They have no brand name on them, just F6 and one or two have F7 I beilieve that is the size number. I doubt if they are worth anything, but what im asking is there anyone who could tell me the brand name of the bait based on these numbers.
Thanks
Bob Piccola

Can you give a description? I think you may have lazy ikes but without knowing the shape I'm not sure. They were made in Fort Dodge Iowa. If that is what you have they are worth between 3 and 8 dollars a piece depending on size and condition.

Thats what I thought they where, may use them I heard they are good baits