Series of 7 symbols inthe University of Havana's Museum. Museo de Universidad de Havana, Cuba.
Dinero de Cuba - This is the front of a Cuban Bill back in the day when Che was the President of the Bank. Check out the signature ....looks like a che to me.
20 - Cuban Pesos - Veinte
Appears to be of the series from 1940 through 1960...but that should be researched.
Dinero de Cuba - This is the back of a Cuban 20 Pesos paper back bill from the days when Che was the President of the Bank of Cuba.
Note: The bottom of the pages says..... American Bank Note Company