@BaseballAttic profile picture
Michael Osacky @BaseballAttic

Sports Memorabilia Expert Appraiser. Accredited Member of ISA. Lead appraiser for PSA (Professional Sports Authenticator)

Joined August 2009
  • Tweets 3,275
  • Following 1,300
  • Followers 1,235
180 Photos and videos
Pinned Tweet
Michael Osacky@BaseballAttic
6 Aug 2024
The Sports Appraiser Podcast is Live across all streaming platforms. What do you want me to discuss on next week's episode? link.chtbl.com/TheSportsAppr…
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Very honored to speak about my profession to @MLB @MLBNetwork children. Today is take your child to work day
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Michael Osacky retweeted
Larry Holder
@LarryHolder
15 Dec 2025
Big hobby breaking news: PSA parent company Collectors to acquire Beckett, keeping it an ‘independent brand’ nytimes.com/athletic/6891882…

PSA parent company Collectors to acquire Beckett, keeping it an ‘independent brand’

Collectors adds a third grading company to its stable, all of which will remain separate brands

nytimes.com
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Last week, David Rubenstein (Carlyle Group/Balitmore Orioles & Michael Alter (Alter Group/Chicago Sky) spoke at the University Club of Chicago. Topic "Investing in Sports." I kicked off the evening and introduced both of the UClub. #sportsappraiser #investinsports
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Thanks Brett for the interview. Always fun chatting with you 😀
Brett McGrath@StackingSlabs
4 Aug 2025
Michael Osacky (@BaseballAttic)has seen it all. Basements full of sealed wax. Signed Babe Ruths (real and fake). 
And stories that collectors never forget. He joined Passion to Profession to talk about what it really means to appraise a collection.
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Honored to have appraised the Tony Gwynn Sports Collection
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Michael Osacky retweeted
Richard Roeper
@RichardERoeper
16 Feb 2025
I'll be watching the @nbcsnl anniversary special from my friends' house in Aurora. When they bought the place from the original owners in the late 1990s, they liked the decor in the basement so much that they've kept the basics intact.
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Collectibles.com
@Collectibles
29 Jan 2025
📺 @TedLasso “...none of them come close in value to Topps’ 2014 card, mainly because of how rare it is now, said Michael Osacky, sports collectibles appraiser and president of Baseball In the Attic.” @BaseballAttic @nytimes @nbc ➡️ nytimes.com/athletic/6078205…

Once given away for free, the Ted Lasso rookie card is now worth thousands of dollars

Before becoming a hit television show, 'Ted Lasso' was also an unknown rookie card.

nytimes.com
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Michael Osacky retweeted
Matthew Seedorff
@MattSeedorff
18 Jan 2025
NEW: Tennis Hall of Famer Pam Shriver tells me she no longer feels safe living in Los Angeles, CA. She evacuated to a hotel in Marina Del Rey during the Palisades Fire, where thieves stole her car full of grand slam trophies. #PalisadesFire #California
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Ben Pope
@BenPopeCST
31 Dec 2024
The Blackhawks arrive at Wrigley Field coming off the Red Line:
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What did you learn or not know? What was your main takeaway? Comment below
Brett McGrath@StackingSlabs
27 Dec 2024
Replying to @BaseballAttic
Every collector should hear this conversation. It’s not just about what your collection is worth—it’s about preserving what it means to you. Happy collecting! podcasts.apple.com/us/podcas…
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Some good tips provided
Brett McGrath@StackingSlabs
27 Dec 2024
Replying to @BaseballAttic
We talked about why appraisals matter. Whether you’re protecting your grails, insuring your collection, or preparing for the unexpected.
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Michael Osacky retweeted
Brett McGrath@StackingSlabs
27 Dec 2024
Replying to @BaseballAttic
Michael shared stories about some of the rarest items he’s worked with, like the T206 Honus Wagner and complete Cracker Jack sets. The collector stories were excellent. The information for collectors wanting to protect their collections were even better.
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Michael Osacky retweeted
Brett McGrath@StackingSlabs
27 Dec 2024
In today’s episode of Stacking Slabs, I sat down with Michael Osacky from Baseball in the Attic (@BaseballAttic). He’s one of the most trusted appraisers in the hobby.
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Michael Osacky retweeted
BaseballHistoryNut
@nut_history
24 Dec 2024
Great billboard for Rickey Henderson
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100 year anniversary of Illinois vs Michigan @ Memorial Stadium
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What do I value the T206 Honus Wagner PSA 8 at? #honuswagner #SportsBiz
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Michael Osacky retweeted
Stefan Bethlenfalvay@SBethlenfalvay
31 Aug 2024
🚨 Opinion | Trump's digital trading cards are practically worthless. "Nobody is going to care or remember these cards in November. The time to sell is today." By Michael Osacky @BaseballAttic msnbc.com/opinion/msnbc-opin… via @msnbc

Why Trump’s new trading cards are a very bad bet

Nobody is going to care or remember these cards in November. The time to sell is today.

ms.now
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I was asked by @MSNBC about the Trump Trading Cards. My thoughts below. I also weigh on in @topps & @michaelrubin msnbc.com/opinion/msnbc-opin…

Why Trump’s new trading cards are a very bad bet

Nobody is going to care or remember these cards in November. The time to sell is today.

ms.now
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Do you remember when you joined X? I do! #MyXAnniversary
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Michael Osacky retweeted
Chicago Tribune A&E@ChiTribEnt
7 Aug 2024
Column: Want to buy Babe Ruth’s ‘called shot’ jersey? How’s $30 million sound? trib.al/HbRpOvQ

Column: Want to buy Babe Ruth’s ‘called shot’ jersey? How’s $30 million sound?

A few weeks ago, an old baseball jersey was brought to Wrigley Field. It once covered the frame of Babe Ruth, arguably the greatest baseball player in history.

chicagotribune.com
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