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

Issue GD VG FN VF NM NM/MT
1
$50.00 $58.40 $77.00 $115.00 $322.00 $1,070.00
2
$17.20 $19.40 $24.90 $35.50 $91.10 $297.00
3
$17.00 $18.00 $20.90 $26.40 $57.00 $155.00
4
$8.10 $9.10 $11.20 $15.20 $28.60 $114.00