Is Noble's Purse legal in Standard, Modern, and Commander?

Noble's Purse is legal in: Legacy, Vintage, Commander.

What type of card is Noble's Purse?

Noble's Purse is an Artifact. Its oracle text reads: "This artifact enters tapped and with three coin counters on it. {T}, Remove a coin counter from this artifact: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")"