#39 skull (dev/null) or daemon
To me it looks like monkey face or like a cats face, a lynx? There is a tap / spigot above but I don't think tap wasn't much of a unix thing back then?
edits:
https://github.com/drio/unixmagic/issues/13
> the top of head has an old time faucet handle and this might be referencing IO redirection (streams) as well as the stream of molten lava/magic brew.