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Unknown Worlds (1960 - 1967)
Best Synd. Features, American Comics Group, 57 issues

Issue GD VG FN VF NM NM/MT
51
$4.40 $6.85 $9.95 $23.60 $72.10 $294.00
52
$4.55 $7.05 $10.80 $23.90 $73.50 $298.00
53
$2.65 $4.75 $7.20 $16.80 $50.40 $214.00
54
$3.85 $6.35 $9.45 $22.00 $66.60 $274.00
55
$4.95 $7.60 $11.40 $26.60 $80.70 $328.00
56
$3.95 $6.55 $9.65 $22.60 $68.40 $283.00
57
$4.60 $7.00 $10.80 $23.70 $72.70 $295.00