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1971 OPC O-Pee-Chee Bobby Knoop PSA 6 Auto 10
1971 OPC O-Pee-Chee Bobby Knoop PSA 6 Auto 10 - Image 2

1971 OPC O-Pee-Chee Bobby Knoop PSA 6 Auto 10

1971 OPC O-Pee-Chee Bobby Knoop – PSA 6 Auto 10 – Signed Autograph

A scarce Canadian-issue card from the 1971 O-Pee-Chee set featuring infielder Bobby Knoop. Graded PSA 6 with a perfect Auto 10 signature, this card presents very well with strong color and excellent autograph placement. Knoop was a three-time Gold Glove winner known for his elite defensive play at second base during the 1960s. With only one example known and none higher, this card is an exceptional rarity for vintage OPC and autograph collectors alike.

  • Year: 1971
  • Set: OPC (O-Pee-Chee) Baseball
  • Player: Bobby Knoop
  • Grade: PSA 6 (Auto 10)
  • Population: Pop 1 – None Higher

A tough signed O-Pee-Chee example featuring crisp presentation and a bold autograph — a perfect fit for high-end vintage signed collections. *HOFSR*

$174.99

1 in stock

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Brent S.
★★★★★
@brentstoys
Working with Dennis at H.O.F. Signed Rookies has been fantastic. He’s highly knowledgeable, always answers my questions, and I’ve already received my signed and slabbed cards. I’m thrilled to have found him and highly recommend his services!
James H.
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@slamdunkcollector
H.O.F. Signed Rookies was a fantastic experience! They helped me land a hard-to-get autograph that turned out amazing. Communication was top-notch, every question answered quickly, and their service earned my full trust. I’ve already sent in more cards for future signings. As a longtime collector, I fully recommend them.
Aaron P.
★★★★★
@aaronisapayne
Great company to work with! My cards came back graded well above what I was hoping. I'll definitely be sending all my cards here to get prepped for now on. Great communication, great service!
Chris C.
★★★★★
@cart_is_wright
H.O.F. Signed Rookies treated my cards with great care and professionalism, ensuring they were well-protected and arrived in perfect condition. Their expertise, attention to detail, and secure packaging set them apart. I highly recommend them for grading, valuation, or expanding your knowledge of sports card collecting!
John M.
★★★★★
@packripperjohnni
I highly recommend H.O.F. Signed Rookies for anyone looking to get their cards autographed and graded. Their all-in-one submission service makes the process seamless—just send your card, and they handle the autograph, prep, and grading from start to finish. Their professionalism, expertise, and attention to detail ensure top-quality results, and their communication is always clear and responsive. If you want trusted results without the hassle, HOFSR is the way to go!
Justin A.
★★★★★
Their submission and autograph packages are on point! I send my cards to them and they take of the rest. They simplify the whole process.
Jake F.
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@giantsgoats
When it comes to sentimental or financially valuable cards, sometimes you need an extra set of eyes and hands to make sure everything’s perfect before grading. H.O.F. Signed Rookies is the place to go. Their communication is excellent, and they do a fantastic job of bringing out the full potential of every card.
Joe M.
★★★★★
@steelers_card_fella
I recently used H.O.F. Signed Rookies for a Steelers signing I couldn’t attend and was thoroughly impressed. Dennis was professional, responsive, and addressed all my detailed questions throughout the process. The team carefully prepped my cards, ensured they were signed in the correct spot, and even submitted them for grading. This white-glove service is exactly what I look for in handling my collection.
Brian R.
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@briangrhodes
Hall of Fame Signed Rookies is a collector’s dream! Their selection of sports cards and memorabilia is outstanding, and their card preparation service for grading submissions is top notch. I would highly recommend checking them out!
Brad C.
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@bradcostilo
Couldn’t be happier with the deal that we worked out! Thank you for the signed Koufax RC, which is a cornerstone piece of my collection!.