Data courtesy of the Grand Comics Database under Creative Commons license.

Issue Details

Issue	#229
Published	March 1956
Frequency	monthly
Cover Price	0.10 USD
Pages	36
Editing	Whitney Ellsworth (credited); Jack Schiff (actual)

Cover Details - "The 10,000 Secrets of Batman!"

Characters	Batman; Robin; Mart Mathers (villain)
Genre	superhero
Pencils	Winslow Mortimer
Inks	Winslow Mortimer

12 page Batman and Robin story "The 10,000 Secrets of Batman!"

Characters	Batman [Bruce Wayne]; Robin [Dick Grayson]; Commissioner James Gordon (supporting); John Creeden (villain); Mart Mathers (villain)
Synopsis	When the Caped Crusaders agree to allow a TV broadcast from the Bat-Cave, Batman discovers to his horror that his microfilm files have been stolen, something that could be of tremendous value to the criminal underworld.
Genre	superhero
Pencils	Dick Sprang [as Bob Kane] (signed)
Inks	Charles Paris
Notes	When reprinted in Batman Annual #1, this story was re-titled "Batman's Electronic Crime File." Synopsis added by Craig Delich 9-11-07.
Reprinted	in Batman Annual (DC, 1961 series) #1; in Giant Batman Annual #1 Replica Edition (DC, 1999 series) #nn

1 page Batman Whirly-Word Game activity

Characters	Batman [Bruce Wayne]
Genre	superhero
Script	Martin Naydel
Pencils	Martin Naydel
Inks	Martin Naydel
Notes	puzzle

6 page Roy Raymond TV Detective story "The Diamond Mine on Broadway"

Characters	Roy Raymond; Karen (supporting); Joshua Maddern (villain)
Genre	detective
Pencils	Ruben Moreira (signed)
Inks	Ruben Moreira (signed)

Half page Casey the Cop filler "It's your move now, Lefty!"

Characters	Casey the Cop; Lefty
Genre	gag
Script	Henry Boltinoff
Pencils	Henry Boltinoff (signed)
Inks	Henry Boltinoff (signed)
Letters	Henry Boltinoff

1 page Binky public service announcement "Healthy Teeth for You and Your Pet!"

Characters	Binky
Genre	teen
Script	Jack Schiff
Pencils	Winslow Mortimer
Inks	Winslow Mortimer
Letters	Ira Schnapp

2 page text story "Sleuthing with Science"

Genre	adventure
Script	Jack Miller (signed)
Letters	typeset

6 page John Jones Manhunter from Mars story "The Phantom Bodyguard"

Characters	Martian Manhunter [J'onn J'onzz; John Jones]; Captain Harding (supporting); Drexel Mansfield (intro, villain); Lawrence Cowan (intro)
Genre	superhero
Script	Dave Wood ?
Pencils	Joe Certa
Inks	Joe Certa
Notes	writer id by Bob Hughes 6/09
Reprinted	in Showcase Presents Martian Manhunter (DC, 2007 series) #1