The Royal Agricultural Society Challenge Shield was the first premiership shield of the New South Wales Rugby League.

A beautiful black mahogany shield embossed with silver, it was won by South Sydney, Newtown and Eastern Suburbs. It was presented to star Easts captain Herbert 'Dally' Messenger in 1913, after his club won the trophy three years running.

The shield is now part of the National Museum of Australia's National Historical Collection. Its association with the genesis of rugby league in Australia, and its connection to the game's first great star, make it one of the most important rugby league treasures held in a public collection in Australia.