Too obscure for today's middle readers?

The story: A noir novel set in a 1940s American metropolis populated with anthropomorphic animals. An owl reporter and a raccoon photographer work the night shift at the city's newspaper. Shadowing the police, they come upon a grisly homicide, but they're not convinced it's an open-and-shut case and must clear the good name of a neighborhood green grocer who insists he's innocent, and a vegetarian as well. It won't be easy since the green grocer is a crocodile and the victim, a beloved bear businessman and philanthropist, was discovered in, as a police detective describes, "more pieces than you can add up on your Smith-Corona."

I wanted the title to be a gentle pun as well as a reference to an era before word processors and computers, thus:

Title change!

The pun falls apart because the owl is a reporter who would use a typewriter but the raccoon is a photographer, so his name has to reflect his equipment, thus the new title: