I may be wrong, but it seems to me that Daimon_link is looking for allegories in the pips.
In other words, in the Atouts we have not only images that depict certain concepts, but that also have a wealth of symbolic and allegorical content from centuries of occidental development.
And to be fair, this is simply just not the case with regards to the pips: they do not derive from allegories at all.
Rather, their 'meaning' is derived from the suit in question, the relation of its number, and its decorations. So the first step, I would suggest, is to have a careful look at the suit and actually get some tools as depicted.
Hold a Sword and feel its force; hold a Cup, reflect on its usage; actually get an old coin, and meditate on it; from a forest, get a branch and behold it.
That is the basis of the suits, in my view, and without actually connecting to the implements, the depictions are distant and to some extant meaningless.
As to the numbers depicted on a card, consider (after doing the above) what two, three, ....etc to ten of the suit actually reflect instead of just one. For example, what is the difference between having ten cups on a table as opposed to one (and what happens to that single bottle of wine???); what is it like laying together ten swords instead of one (and who wields them?); what of Coins? and Batons?
Once these are held and slowly reflected on, the depiction on the cards also add more: those floral arrangements! What do these bring to the overall sense of the cups, the coins, the batons, and the swords?
Certainly, there are not the allegories that the Atouts present, but neither are the Atouts able to be understood in a manner described for the four other suits. They each have their particular manner of being further understood, in my view.