Ince did list four printings made during the period of the second crown CA issue, between 1884 and 1886, which comprised 17,820 of the 24,540 stamps that were printed. Those printings were as follows:
- July 8, 1884 - 56 sheets
- December 16, 1884 - 60 sheets.
- July 13, 1885 - 63 sheets.
- December 29, 1885 - 60 sheets
- June 30, 1886 - 58 sheets
That left 6,720 stamps that would have been printed between February 1882, when the stamps were first issued, and December 1884 - a period just under 3 years. The question is: how many printings were made in this three year period? By looking the quantities of the known printings, you can see that the quantities produced with each shipment were between 3,360 and 3,600 stamps. So it seems likely that the 6,720 stamps produced prior to 1884 were produced in two, or possibly three smaller printings. There was about 6 months between each of the known printings, so assuming that this interval was consistent throughout the period, and taking into account the fact that the very first printings were not placed on sale until June 1882, then there should have been 4 printings as follows:
- February 14, 1882.
- December 1882 or January 1883.
- June 1883 or July 1883.
- December 1883 or January 1884.
- 1 is cancelled with a foreign grid cancel of some kind which is not native to Lagos.
- 7 are cancelled with the 8-bar oval killer.
- 1 is cancelled with either an 8-bar or a 9-bar killer.
- 2 are cancelled with a 9-bar oval killer.
- 4 are canceled with Lagos CDS's dated between March 1887 and April 1892.
- An 8-bar killer consists of three bars of gradually increasing width, then 2 bars of equal width followed by the 3 more bars of the same widths as the first three.
- A 9-bar killer consists of four bars of gradually increasing width, then one widest middle bar, and then 4 more bars just like the first four.