There's a third.
One for the Jacking instructions, one for Posi and one for the N65 Space Saver tire.
(For locations, look in the 1967 AIM at UPC 10, sheet A2 for the Jacking instructions, RPO G80, sheet A1 for the Posi sticker and RPO N65, sheet A2 for the Space Saver sticker.)
HOWEVER!!!
Although it IS in the 1967 AIM with no notes about being never released, cancelled or discontinued, according to all sources, RPO N65 wasn't available in 1967. So in this case (1967), yes, as Buddy stated, there are only two.
Ed