anyone know what these may be from

Carton prices for cigarettes...or case prices for beer...probably the latter, cigarettes haven't been 15 bucks for a carton since the 70s

Depends on the state you were in, Arkansas 1975-1976 a cartoon of Regulars $7.50 and longs were $8.00. Rember them well as I was a checker at the Piggly Wiggly and cigs had to be added last so we could tax them! So maybe beer or cigs from late 80's.

I wish i could offer more help.

The white reflective surface looks like the kind used between 1960 -1990. The blue & white is the combination used on a highway sign -or- a local road sign.

The oddball thing is that they usually use some other kind of sign for advertising prices. Cigarette,beer, and gasoline prices are changing up and down all the time.

Could it be for something else where the price is more stable ? Maybe a campground,a ferry service,a toll road,a towing service, an oil change ? Maybe entry fees for a state or national park ?

The biggest purchaser for that kind of sign is local,state, and federal govt.

Were the signs found at an old abandoned gas station ? A bit more of the back story of where they were found might provide a clue.