It's sitting in front of Escuela Militar in Lima, Peru. Looks like a 1930's French or British tank/tankette (Bolivia used some UK tanks in a war in the 30s). Not in the AMR3x series as far as I could tell. Note what looks like a Renault FT17 track - higher in the front than in the back, but less pronounced. Looks like possibly a water cooled machine gun rather than the stubby low-velocity low-caliber guns typical of the interwar tanks. Quite small.
edit: it only looked a bit like the FT17's higher front, but then looking more closely at the photograph, it looks like the 2nd front and 2nd last bogie are the same size. I didn't think it was a FT17, merely something that might have come out from the same design bureau 10 yrs later.