My sister in law lives in Sebring and sends me these old post cards as she finds them. Unfortunately there are no dates to definitively ID the years.

The top one is probably from 1958-1962 era as there is a White 58-62 in 3rd place at the start. There is another C1 visible. It is White also and the first in line yet from the Le Mans start.

Update per Mr. Loren Lundberg: "This is 1961, using car #9 as a date reference. 9 is a Ferrari Testa Rosa, being driven by Jack Nethercutt and Pete Lovely. The #4 Corvette in the background is the Delmo Johnson/Dave Morgan car that ultimately finished 11th."

I would guess the lower post card is from 1965 or 1966 due to the hood on the 2 Grand Sports have what looks like 65-66 big block hoods. Not bad, 3rd and 4th place to a Ferrari and a F*rd GT40 at the start. Must have been a hell of a drag race!

Update per Mr. Mark Milner: "The other is 1966 most likely due to lack of the white #1 GS coupe and the blue and white #2 GS coupe which were in the 1965 race. The #10 GS roadster of Roger Penske was in the 1966 race, and appears in this card. The 1967 race, the GS of Wintersteen started further back and may have been the only one entered."

I don't know the year of the following Sebring post card.