@Valentinian for this interesting bit of info about the following coins: The CONSTANTINOPOLIS type comes spelled without the terminal "S" at four mints (Constantinople, Cyzicus, Heraclea, Nicomedia) located around the Propontus (Sea of Marmora, near Constantinople). According to John Kent (author of RIC, vol. VIII) this "reflects the fall of the terminal -s in the spoken language and provides an interesting hint as to how instructions reached the engravers." @Valentinian writes, "I presume he means that he thinks those four mints received instructions from the same source, there was a oral stage in the transmission, and it was a regionally accepted pronunciation. The missing 'S' sound reminds me of modern French pronunciation." Here's a little mini-set I have acquired, one from each of these four mints: Heraclea, RIC vii p. 559, 135. Constantinople, RIC vii p. 582, 79. Nicomedia, RIC vii p. 634, 196. Cyzicus, RIC vii p. 656, 93. Let's see your CONSTANTINOPOLI(S) commemoratives! All mints and all reverse types encouraged!