The Printings of the 4d Lilac and Black Queen Victoria Keyplate Stamp of Lagos - Part Four

Last week I segued into the halfpenny surcharge issue of 1893, which utilized quantities of 4d stamps that were on hand, nearly all of which would have been printed before that time. I had hypothesized that by attempting to match these surcharges with some of the regular stamps that I had already identified, that I would be able to isolate: 1. Printings made after February 1894, where I have regular examples, but none that are surcharged. Note that it is possible that such printings could be from before February 1894, and were never surcharged, or I just don't have an example of one. However, there is a better than even chance that if a stamp only exists without surcharge, and it is from the third state of the plate, then it likely is from a later printing. 2. Additional printings made between July 1893 and February 1894 where I only have a surcharged example. Last week I sorted the surcharged stamps that I have by their settings, and the printing that they came from. Over t...