This looks very homemade. It is a mishmash of maybe too many ideas.
The pointy things are definitely unneccessary.
It was the arch with porthole that caught my attention.
Weird mishmash of body parts/animals.
Mishmash of old and new. I could not get this to open. It looks like you
needed a citizen's key to open it. Is this something people regularly carried
with them?
American telegraphy and encyclopedia of the telegraph: systems, apparatus ...
By William Maver (jr.) pg. 478-479 has the answer to this contraption. Click
for the full description. Apparently the ones mounted on their own company supplied pole are pretty rare. The were usually mounted on light poles or something else existing. The keys were only given to business owners and/or 'prominent' citizens and didn't come out once inserted and turned to discourage prank calls. (A very old problem it seems). Dating from the early 1900's. Replaced by cell phones, police radios and 911.