Our original paperback Reference Book to the issues of Ogdens Ltd is a fount of knowledge. Not only the basic description : "fronts printed in letterpress in black and white. Backs in black, no descriptive text. Home issue 1915." but it also adds that "Many of the cards in this series are found with two or more different numbers"
There is a list, which I will scan and add, but our card, showing as number 44, can also be found as card 25. It seems that 44 is the most usual printing. Now if you look at card 25, the most usual printing of that is on a card called "Dropping bombs from aeroplane". It seems that there is no alternative card 44. However you may spot it once the list appears, and you can also check your sets!
Another fascinating fact within this section is the fact that there were similar issues by Wills (Australia) and Sweet Caporal (Canada)
Now a bit of extra research tells us that the Wills set is actually two, because it can be found with "Wills Specialities" and with the "Havelock" brand.
And the Sweet Caporal was issued by Imperial Tobacco of Canada, with a very similar back to ours, though the album clause "Albums for these picture cards can be obtained / at 1/- each through all tobacconists" and the bottom panel "Issued by the manufacturers of Sweet Caporal Cigarettes" are different. The front is also slightly different for the panel read "Sweet Caporal" Cigarettes rather than Ogdens.