Andres Restrepo posted this photo on Myaviation.net and added the following details:
Ex-Inair Panama Douglas DC-4 (should read DC-6 -webmaster) at Cali-Jose Pardo Llada Amusement Park, Colombia (November 2nd, 2005); "this old DC6 was donated by the Panamanian dictator Omar Torrijos to Mr. Jose Pardo Llada in 1977 or 1978; this plane wore the original livery until a few years ago when it was painted on these colors"
The photo was published with permission by Mr Restrepo, for the sake of researching its full identity.
Nils Rosengaard wrote the following:
Alexandre of the Aerotransport database holds a different theory:
Further details and/or comments would be welcomed.