UPDATE: this is now rendered thoroughly obsolete by ESA's own shape model page, which now has download and online viewing of both ESA's and Mattias' models, including annotations.
I took Mattias Malmer's excellent shape model of comet 67P and scribbled labels and regional boundaries on it from two sketch maps (one, two) released by ESA, using MeshLab.
This is a very rough job to aid orientation; the accuracy of my transcription should not be relied on, and the source images seem approximate; there's a particularly large inconsistency at the boundary between Imhotep and Ash.
Download the shape model (zipped .OBJ)
Note: the colour information in this .obj file (without which it's pointless) appears to be stored in a non-standard format extension. MeshLab can certainly display it, but I don't know what else can.
Links to other derived versions of Malmer's shape model: