Rare 'Super Mario Bros.'/'Duck Hunt' variant discovered, to auction this week - Mashable

Mashable · 8/11/2026

Ultra rare Nintendo Super Mario Brothers Duck Hunt game cartridges discovered in Wisconsin - Chicago Tribune

Chicago Tribune · 8/11/2026

Rare Nintendo cartridges of Super Mario Bros. and Duck Hunt found in Waukesha, Wisconsin storage could be worth millions - ABC7 Chicago

ABC7 Chicago · 8/9/2026

97 untouched Duck Hunt and Super Mario Bros. cartridges worth thousands discovered in retro shop storage room — never-before-seen version of popular NES games include five perfect 10 PSA items - Tom's Hardware

Tom's Hardware · 8/1/2026

'We Were Shocked' — Collector Discovers Unreleased Version of Super Mario Bros. Duck Hunt in Historic Haul - IGN

IGN · 7/29/2026