A peruvian made tug:
A french made FAC, PR-72P in the mid 1980s:
(with the corrected artillery turrets, thanks Henrik & Ace!).
A british made pre-WWI:
This is a british made river gunboat of the post war (WWII) era:
And a locally built modern gunboat for the Amazon basin:
And a classic (in small vessels of the 1960s), Patterson boat PGM-71:
A pair of columbian built Fassmer OPV: