Impeta Sarah ni impeta y'izahabu yahumetswe n'ubwoko bw'indabyo peony ndetse n'umukinnyi w'inyeshyamba wari uyisimbuye izina, Sarah Bernhard. Impeta igaragara nk'ikomeye kandi yoroshye icyarimwe, nk'uko indabyo ubwayo imeze. Isura yayo ihinduka bitewe n'aho urebera. Sarah yakozwe mu izahabu ya 585 y'umuhondo yasubiwemo (recycled) hakoreshejwe uburyo bwo gushonga inkoni z'ibinyabuzima (lost wax casting) n'uburyo bw'abanyabukorikori b'izahabu. Amashusho y'indabyo yaremwe bapfundikira ubuki (wax) bushonze hejuru y'ikoranabuhanga ry'icyuma cyunamye (iron sphere tool), hanyuma bigashongwa mu izahabu, bigasukurwa neza kandi bigahuzwa hifashishijwe umugozi w'izahabu, hakoreshejwe amasoda make gusa. Iyi mishinga ihuza ubuhanzi bw'ibirori by'ibikoresho by'imyambarire n'ubuhanzi nyabwo.
Izina ry'umushinga : Sarah, Izina ryabashushanya : Anna-Reetta Väänänen, Izina ry'abakiriya : Anna's Darling.
Igishushanyo cyiza nuwatsindiye igihembo cyumuringa mububatsi, kubaka no guhatanira imiterere. Ugomba rwose kubona ibihembo bya bronze byegukana ibishushanyo mbonera bya portfolio kugirango umenye ibindi byinshi bishya, bishya, byumwimerere kandi bihanga imyubakire, inyubako nuburyo bwo gukora.
