The 2 15 cts stamps are from a mini-sheet commemorating the 150th anniversary of the US Constitution (SG MS367b) in 1938
http://static.postbeeld.com/media/s.../gtpb001.jpgThe top LH stamp seems to be SG416 (1942), Obligatory Tax - original stamp (SG229) overprinted CONSTRUCCION 1942 UN CENTAVO (1c on 2c blue)
The red stamp on the 2nd line seems to be SG410 (1940) overprinted 5c on 50c, showing Lake Amatitlan.