Bobby Knoop
1971 Topps #506
312
Total Sales
PSA 306
SGC 2
BVG/BGS 3
GAI 1
Recent Sales History by Grade
Read about our New Best Offer features.
VIP Members can view completed auction prices that took place on eBay and major auction houses. Click below to sign up for a Gold Membership now for immediate access to historical baseball card values.
Log In Sign upPSA
AUTH
VIP
1
VIP
1.5
VIP
2
VIP
2.5
VIP
3
VIP
3.5
VIP
4
VIP
4.5
VIP
5
VIP
5.5
VIP
6
VIP
6.5
VIP
7
VIP
7.5
VIP
8
VIP
8.5
VIP
9
VIP
10
VIP
SGC
AUTH
VIP
1 (10)
VIP
1.5 (20)
VIP
2 (30)
VIP
2.5 (35)
VIP
3 (40)
VIP
3.5 (45)
VIP
4 (50)
VIP
4.5 (55)
VIP
5 (60)
VIP
5.5 (70)
VIP
6 (80)
VIP
6.5 (82)
VIP
7 (84)
VIP
7.5 (86)
VIP
8 (88)
VIP
8.5 (92)
VIP
9 (96)
VIP
9.5 (97)
VIP
10 (98)
VIP
10 (100)
VIP
BVG/BGS
AUTH
VIP
1
VIP
1.5
VIP
2
VIP
2.5
VIP
3
VIP
3.5
VIP
4
VIP
4.5
VIP
5
VIP
5.5
VIP
6
VIP
6.5
VIP
7
VIP
7.5
VIP
8
VIP
8.5
VIP
9
VIP
9.5
VIP
10
VIP
10 BLACK
VIP
CSG/CGC
AUTH
VIP
1
VIP
1.5
VIP
2
VIP
2.5
VIP
3
VIP
3.5
VIP
4
VIP
4.5
VIP
5
VIP
5.5
VIP
6
VIP
6.5
VIP
7
VIP
7.5
VIP
8
VIP
8.5
VIP
9
VIP
9.5
VIP
10
VIP
PERFECT 10
VIP
PSA-Q
GAI
