variantventures
Dummett wrote that the first four are in "the private collection of Dr Edmund de Unger". I'll provide the catalogue numbers if that will help. Keep in mind that these are the designations they had around 1980 when he published The Game of Tarot so things may have changed.
1) The familiar half card is I-27
2) Ace? of cups is I-28
3) 2? of swords is I-51
4) 4? of coins is I-52
5) The Benaki card is 9b
In addition, Dummett also cites another fragment which he doubts is a playing card but may be a coin suit card. Its Benaki catalogue number is 9c.
The following fragments may or may not be playing cards:
A) Mounted viceroy as de Unger 1-31
B) A seated king holding something in the Museum of Islamic Art in Cairo (15610/4-1)
The museum sent me a PDF with a few thumbnails to confirm which objects I'm requesting to view.
The catalog numbers are written I.027, I.028, I.051, and I.052 in the current version of the catalog. Those numbers are old/alternate. The new catalog numbers are: K.1.2014.1132, K.1.2014.1133, K.1.2014.1156, K.1.2014.1157. I've seen thumbnails of the fragments taken from the catalog. I.027/ K.1.2014.1132 was recognizable and it appears an organic yellow was used for the coloring. I.028/ K.1.2014.1133 was recognizable from the shape but the details of the artwork could not be made out. I could really only spot the cup because I knew what to look for. I.051/ K.1.2014.1156 was fairly legible but I couldn't make out any details that looked like a sword. This fragment is also cruder in execution than the other fragments and, if it is a playing card, it would be much smaller than any Islamic style card I'm aware of. I.052/ K.1.2014.1157 is fairly difficult to make out. There are two visible circles that might be surrounded by floral elements in the same manner as the Topkapi coins. The remains of red pigment are visible on the fragment.
I still haven't heard back from the Museum of Islamic Art in Cairo.