|•| M A S K E D • M A R V E L • C H R O N O L O G Y |•| 

ZL appears in 11-16 • ZR, and ZY appear in 11-17 & Masked Marvel 1 -3
=== 1938 ===

<sortable>
^Publisher^Title^Issue^On Sale Date^Character^
|Centaur|Keen Detective Funnies|011 • vIInVII|May 26, 1939|Cover|
|Centaur|Keen Detective Funnies|012 • vIInVIII|June 26, 1939|Cover|
|Centaur|Keen Detective Funnies|013 • vIInIX|July 28, 1939|Cover|
|Centaur|Keen Detective Funnies|014 • vIInX|August 28, 1939|Cover|
|Centaur|Keen Detective Funnies|015 • vIInXI|September 27, 1939|Cover|
|Centaur|Keen Detective Funnies|016 • vIInXII|October 27, 1939|ZL Dies|
|Centaur|Keen Detective Funnies|017 • vIIInI|November 27, 1939|Story|
|Centaur|Keen Detective Funnies|018|January 2, 1940|Story|
|Centaur|Keen Detective Funnies|019|January 25, 1940|Story|
|Centaur|Keen Detective Funnies|020|February 26, 1940|Story|
|Centaur|Keen Detective Funnies|021|March 26, 1940|Cover|
|Centaur|Keen Detective Funnies|022|April 26, 1940|Cover|
|Centaur|Keen Detective Funnies|023|May 27, 1940|Story|
|Centaur|Keen Detective Funnies|024|July 3, 1940|Story|
|Centaur|Masked Marvel|001|June 25, 1940|Cover|
|Centaur|Masked Marvel|003|July 29, 1940|Cover|
|Centaur|Detective Eye|001|August 29, 1940|Story|
|Centaur|Masked Marvel|003|September 1, 1940|Cover|


</sortable>