About Us

There is no us, there is only me (Marty) at least for now. JM Sports cards is a spin-off of cowboycards.com which was initially launched in 2000. Cowboycards.com was re-branded in 2016 to JM Sports Cards to broaden our audience and also make room for my son in case he decided to opt for a unique career choice vs the standard 9-5. Originally JM Sports Cards offered sports cards for sale via Beckett and eBay and now we are offering group case breaks via YouTube and Breakers.tv.

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