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Hardy Boys, The (1970 - 1971)
Gold Key, 4 issues

Issue GD VG FN VF NM NM/MT
1
$45.60 $52.10 $68.40 $99.50 $285.00 $850.00
2
$16.20 $18.00 $23.00 $32.10 $82.70 $244.00
3
$17.00 $18.00 $21.10 $26.70 $59.50 $155.00
4
$9.25 $10.30 $12.60 $16.90 $30.50 $114.00