The pistol shows some signs of East-German reworking, although more detailed descriptions (like barrel markings) will be needed. If it was a DDR rework, this might explain how the pistol ended up in Nicaragua, as DDR surplus was regularly used to supply countries in need of not-too-obvious Eastern-Block military support.
It just adds to an interesting history. This pistol saw service before WW1, during WW1, in the Weimar era, during WW2 and after WW2 and made a journey though the most important conflicts of the last century.
I'd try to get both guns
