Nicaraguan Official

 Official stamps from 1890-99 with genuine cancellations are scarce according to my catalogue. So you be the judge on this one, being as I have no clue what an "official" cancellation would appear like. Oh yeah, my book also says forged cancellations are plentiful, so I won't bank on this being genuine, nevertheless this is the highest valued Nicaraguan official I have(that I've come across). This is O99 valued at $25.

JimmyB