I have gone around in a circle and ended up where I started

I googled for info on this British Guiana revenue, and "found" this thread (Cjd posted a pic of one on page 7). Why did I bother looking elsewhere

I ought to know better by now


Some more from my recent stamp show BOB/Cinderellas/Revenues purchases.

Swiss 3f "Service Consulaire"

Mexico, "Documentos y libros" - I'm assuming Documents and Books?
First forays into revenues, no clue what I'm doing yet!