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Secret Six (1968 - 1969)
National Periodical Publications, 7 issues

Issue GD VG FN VF NM NM/MT
1
$4.55 $7.85 $13.40 $33.90 $171.00 $615.00
2
$2.15 $3.55 $5.30 $14.60 $78.60 $233.00
3
$2.50 $3.90 $6.35 $17.20 $79.40 $244.00
4
$2.30 $3.70 $5.45 $13.30 $70.10 $232.00
5
$1.90 $3.65 $5.50 $15.00 $75.00 $274.00
6
$1.90 $3.35 $6.35 $13.30 $77.30 $240.00
7
$1.80 $4.45 $5.60 $13.00 $72.40 $243.00