Your search for "Selesnya Signet 258" revealed the following:
Selesnya Signet (Foil) (RAV) from Ravnica: City of Guilds, available at 401 Games Canada. Rarity: Common Finish: Foil Artist: Greg Hildebrandt Card Text:1, T: Add GW to your mana pool.
Selesnya Signet (CMD) from Commander 2011, available at 401 Games Canada. Rarity: Common Finish: Normal Artist: Greg Hildebrandt Card Text:1, T: Add GW to your mana pool.
Selesnya Signet - Dan Frazier is Back: Allied Signets (SLD) from Secret Lair Drop, available at 401 Games Canada. Rarity: Rare Finish: Normal Artist: Dan Frazier Card Text: Dan Frazier: Allied Signets1, T: Add GW to your mana pool.