They are fairly common. All are 1950's Battista era, pre-Castro revolution.

I'd sell these for $25 each, postpaid/insured, all nice condition:
(1) $25 Capri -- mine looks gray in the picture above, but it is light green actually.
(2) $5 Capri -- the red one in the middle, w map of Cuba on it
(3) $5 Hilton
(4) for $20 I'd sell one similar to the "Casino $5 de Capri", except mine would have a letter (like "E") instead of the "$5."

Robert