Rogers declines, saying that it "gave the old girl a little bit of character". This premise was not observed in subsequent storylines, which did not depict the shield with the scar. Other shields While Rogers was asleep in suspended animation, three other men used the identity of Captain America, all using steel replicas of the discus shield. The 1950s Captain America was placed in suspended animation after becoming mentally unstable. By the time he was revived years later, Rogers had returned. When the two clashed, the 1950s Captain America's shield was broken. In the 1980s, in a story written by Mark Gruenwald, Rogers chose to resign the mantle of Captain America, rather than submit to the orders of the United States government and took the alias of "The Captain" instead. During this period, the role of Captain America was assumed by John Walker, the former Super-Patriot, who used both the costume and the indestructible shield. In his new identity of "The Captain", Rogers initially used a pure adamantium shield provided by Tony Stark, but a falling out between the two as a result of the "Armor Wars" storyline led Rogers to return it. He then began to use a pure vibranium shield provided by the Black Panther. When Rogers returned to his Captain America identity, Walker became the U.S. Agent and returned the original shield to him. Walker would go on to have his own array of different shields over the years, the first of which appeared to be the last vibranium shield Rogers was using as the Captain. The U.S. Agent used shields with an eagle motif and one in the shape of a star, as well as a photonic energy shield. At one point, when Rogers was exiled from the United States and was briefly unable to use his shield, Sharon Carter provided him with a photonic energy shield designed to mimic a vibranium matrix. This shield was also able to turn into an energy staff that could be used as a weapon. During the time when the shield was lost in the Atlantic, Rogers tried using a pure adamantium shield, but was unable to get used to the balance. He also tried fighting without a shield but also found it awkward. While up against HYDRA agents in the Smithsonian, he picked up the triangular shield that was being exhibited there and used it for a time before