The aircraft's finish seems to have been quite dark, again
suggesting extended time in service. The area around the fin and rudder
was very worn indeed, while the fuselage looks to have been quite
freshly painted with a large and crooked national star. The serial
number had been covered as usual with blobs of AMT-4, and a star placed
onto the wing under-surface.
Addendum
This example from the 51 MTAP has its external rack unusually mounted to port.
The extremely well photographed A-20G-36-DO s/n 43-10067 "White 16" of the 51 MTAP had external bomb racks mounted on both sides of the fuselage.
----------------------------