GSSM

Welcome to Grand Slam Sports Memorabilia. We are an online store that helps sports fans & collectors expand their passion for their teams or favorite athletes. Our high-quality autographed sports collectibles include signed jerseys, photos, balls, and helmets!

Carlsbad, US · prices in USD · ships to 5 countries. Catalogue read from grandslamsportsmemorabilia.com's own public product feed on 2026-09-05. Every figure below is an observation from that feed, not an estimate.

Products
912
500 read so far
In stock
53%
Median price
189.99 USD
Discounted
384
⌀ 25.6% off

Sales estimate

grandslamsportsmemorabilia.com does not publish stock levels. Units sold can only be derived from stock falling between two readings, so no revenue figure is possible for this store — by any method, not just ours.

Store facts

Products
511
counted in our crawl
First product
2021-08
oldest listing seen
Traffic rank
top 50,000k
Chrome UX bucket, not visits
Tracked by
0
requests on this page
Collections
11
Ships to
5 countries · *, CA, ES, TN, US
Payment
visa, master, american_express, discover, diners_club · instalments

Brands carried

Matched on the store's own brand field, so these are exact — not guessed from product names.

GSSM (502)Grand Slam Sports Memorabilia (9)

Products

ProductBrandPriceWasOff
Raphinha Signed FC Barcelona Jersey (Beckett)GSSM149.99 USD299.99 USD−50%
João Félix Autographed Atlético Madrid Nike Soccer Jersey (2) (Players Ink Certified)GSSM129.99 USD249.99 USD−48%
Mason Miller Signed White Team USA Jersey (Prova)GSSM129.99 USD249.99 USD−48%
Ahmad "Sauce" Gardner Signed New York Jets Black Jersey (Beckett)GSSM99.99 USD189.99 USD−47.4%
Ahmad "Sauce" Gardner Signed New York Jets Green Jersey (JSA)GSSM99.99 USD189.99 USD−47.4%
Alex Bregman Signed Marucci Player Model Baseball Bat Inscribed "2017 & 2022 WS Champs" (Beckett)GSSM399.99 USD699.99 USD−42.9%
Pete Rose Signed Career Highlight Stat Jersey Inscribed "Hit King #4256" & "Charlie Hustle" (Beckett)GSSM299.99 USD499.99 USD−40%
Lukas Podolski Signed Adidas UEFA Champions League Soccer Ball (Fanatics Certified)GSSM179.99 USD299.99 USD−40%
Ansu Fati Signed F. C. Barcelona Nike Dri-Fit Jersey (Beckett Certified)GSSM179.99 USD299.99 USD−40%
Edinson Cavani Signed Adidas 2022 FIFA World Cup Soccer Ball (JSA COA)GSSM149.99 USD249.99 USD−40%
Mason Miller Signed White Padres Jersey (Prova)GSSM149.99 USD249.99 USD−40%
Walker Buehler Signed Official 2020 World Series Logo Baseball Inscribed "2020 WS Champs" (Beckett)GSSM119.99 USD199.99 USD−40%
Alonzo Mourning Signed Wilson Indoor/Outdoor Basketball (Beckett Witness Certified)GSSM119.99 USD199.99 USD−40%
Ansu Fati Signed FC Barcelona Jersey (Beckett)GSSM119.99 USD199.99 USD−40%
Mike Williams Signed Los Angeles Chargers 11×14 Photo (Beckett Witness Certified)GSSM59.99 USD99.99 USD−40%
Felix Hernandez Signed 4x6 Tacoma Rainiers PhotoGSSM59.99 USD99.99 USD−40%
Jay Payton Signed 2000 World Series OML Baseball (JSA COA)GSSM59.99 USD99.99 USD−40%
Ray-Ray McCloud III Signed San Francisco 49ers White Jersey (JSA Witness COA)GSSM79.99 USD129.99 USD−38.5%
Yordan Alvarez Signed Jersey Inscribed "22 WS Champs" (Beckett)GSSM189.99 USD299.99 USD−36.7%
Taylor Swift Signed with "Heart" "The Tortured Poets Department" CD Insert With Case & Disc(3)GSSM189.99 USD299.99 USD−36.7%
"The Wizard of Oz" 11x14 Photo Cast-Signed by (3) with Mickey Carroll, Jerry Maren, & Karl Slover with Multiple Inscriptions (JSA)GSSM69.99 USD109.99 USD−36.4%
Jackson Merrill Signed Rawlings Blonde Baseball Bat (Prova)GSSM159.99 USD249.99 USD−36%
Andre Reed Signed Buffalo Bills Salute To Service Speed Mini Helmet (Beckett Witness Certified)GSSM89.99 USD139.99 USD−35.7%
Felix Hernandez Signed Mariners Blue/Teal Jersey - TMN COAGSSM89.99 USD139.99 USD−35.7%
Felix Hernandez Signed Mariners Blue Jersey - TMN COAGSSM89.99 USD139.99 USD−35.7%
Pete Rose Signed Reds Framed Photo Display with 1975 & 1976 World Series Pins (Rose)GSSM259.99 USD399.99 USD−35%
Nolan Ryan & Ellie Rodriguez Signed 8x10 Photo (AIV & Ryan)GSSM129.99 USD199.99 USD−35%
LaDainian Tomlinson Signed San Diego Chargers 8x10 Photo (2) (Beckett Witness Certified)GSSM129.99 USD199.99 USD−35%
Derwin James Signed Chargers Powder Blue Jersey (Beckett Certified)GSSM129.99 USD199.99 USD−35%
Ja’Marr Chase Signed Cincinnati Bengals 11×14 Photo (PIA Certified)GSSM129.99 USD199.99 USD−35%

Catalogue over time

DateProductsIn stockMedian price
2026-09-05500267189.99 USD
2026-08-05500278183.99 USD

Data collected from grandslamsportsmemorabilia.com's public product feed. Not affiliated with or endorsed by this store. Request removal.