Fawkes' Super Sledge

Fawkes' Super Sledge is a Super Sledge equipped by Fawkes while escaping Vault 87 with her. To obtain it, kill her or accept her as an ally and trade equipment with her. If you choose to take it, Fawkes is equipped with a normal sledgehammer. You may also pickpocket one from her. (She appears to have two in her inventory when pickpocketing.)