So, here are some answers
16, 17, 18-- I think these are different representations of the "stylis", the naval ornament which appears in the hands of Nike on the obverse of Alexander's gold coinage.
20. Symbols of Herakles on the coinage of Alexander, because he is a descendant of Herakles (and hence the head is not a portrait of Alexander, but one of the hero).
24 is Aramaic, a Semitic language used in Western Asia, notably by the Persians for official use-- here on coins (I think these are satrapal coins from Kilikia).
25 Müller wonders: a shield ? an oar ? a sling pouch ?
26 ΑΣΠΕΝ | ΔΙΩΝ. The second letter is a lunate sigma
https://en.wikipedia.org/wiki/Sigma#Lunate_sigma27. Tetradrachms of Aspendos:
http://www.wildwinds.com/coins/greece/pamphylia/aspendos/i.html--with the slinger, a play on the name of the city sounding a bit like sphendone.