I'm looking for representations and meanings of the logographs of the Uruk period (3500–3000 BC), such as those on the Kish tablet. I've only been able to find a few examples, but over 1000 are known. The only relevant work I've seen referenced is Falkenstein (1936), which I can't find anywhere.
I have found full list of proto-cuneiform signs (very large file [93 MB]), with very detailed glyphs
together with their meanings sadly meanings seems to be all missing. Though there is no author information.
Also as you suggested; A. Falkenstein, Archaische Texte aus Uruk (Archaische Texte aus Uruk 1; Berlin-Leipzig 1936)
from Cuneiform Digital Library Initiative website.
Another alternative, though without meanings again; Proto-Cuneiform Signs by Ashur Cherry