DC [character]
in Superman Presents Tip Top Comic Monthly (K. G. Murray, 1965 series) #90 ([circa 1973])
in Showcase Presents: The Brave and the Bold Batman Team-Ups (DC, 2007 series) #2 (2007 [February 2008])
in Batman Collection - Jim Aparo (Panini Deutschland, 2013 series) #1 ([Februar] 2013)
in Batman: The Brave and the Bold - The Bronze Age Omnibus (DC, 2017 series) #1 ([March] 2017)
in Batman in the Brave and the Bold: The Bronze Age (DC, 2017 series) #2 ([March] 2019)
in Superman Presents Tip Top Comic Monthly (K. G. Murray, 1965 series) #90 ([circa 1973])
in Showcase Presents: The Brave and the Bold Batman Team-Ups (DC, 2007 series) #2 (2007 [February 2008])
in Legends of the Dark Knight: Jim Aparo (DC, 2012 series) #1 ([June] 2012)
in Batman Collection - Jim Aparo (Panini Deutschland, 2013 series) #1 ([Februar] 2013)
in Batman: The Brave and the Bold - The Bronze Age Omnibus (DC, 2017 series) #1 ([March] 2017)
in Batman in the Brave and the Bold: The Bronze Age (DC, 2017 series) #2 ([March] 2019)
from The Brave and the Bold (DC, 1955 series) #19 (August-September 1958)Full letters from: William G. Laks, Fred Wm. Mielo, Bob Rozakis; and Bits from the Mailbag letters from Mark M. Thomase, Karen Wong, and Bob Janz.
Located at the bottom of the letters page.