The Two Types of the Sierra-Bonilla Issue
The one cent brown
The late version added slashed shading to the vertical uprights and to Sierra's jacket and bowtie. The brown is also a bit lighter.
The two cent red

The two cent had an undetermined number of sheets printed in which every fourth row of five stamps had Sierra's image tilted slightly but noticeably to the right. The amount of tilt varies a bit but in all cases simply look at the level of Bonilla's eyes. The tilted version will always have one eye a bit lower than the other.

----------------------------------------
Anderson collection
Honduras Report by Richard Washburn from The Oxcart, spring 1995.
8/24