Von Saleski states that the 1918 pictorial issues were first delivered to Liberia on December 12, 1916 but all references lists these as the 1918 pictorials. I know that it is a shot in the dark since these are tough to find used, but does anyone have a pre-1918 cancel for this series? It is hard to imagine that these sat around for a year before they were sold. And with the climate in Liberia, sitting around for a year probably would not be good for them. Thoughts?