Published March, 1991 (Copper Age) by DC Comics and went on sale in 1991 for $2.95 USD. This issue contains 80 pages in Color, the current NM value is $6.00 USD.
Additional Issue Information:Direct Edition
Batman's 600th Appearance Anniversary
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Detective #627 was an interesting experiment. It started in the 60s and continued 30 years later. I wonder if this test was ever continued in another anniversary issue? If yes, I'd be really interested in getting those issues if DC ever did. And if they haven't, maybe it's time to do it again! I'd buy it!