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The baptismal font of the church dates from the late 12th century and is made by an artist or workshop known by the notname Byzantios. Baptismal fonts similar to the one in Garde exist in Atlingbo and Hogrän churches. Like all baptismal fonts by Byzantios, it has an octagonal basin, decorated with figures in low relief between short columns supporting round arches. Traces of the original paint still remain on the base of the baptismal font; the paint discernible on the basin dates from the middle of the 18th century. The altarpiece of Garde Church is made of sculpted and painted limestone, and dates from 1689, or possibly 1682. Its central section depicts the Last Supper, and is flanked by two sculptures of Moses and Aaron. On top is the monogram of King Charles XI of Sweden. The pulpit was made in 1662, and probably painted in its current colours in 1749. The present pews were installed during the 1960s. The triumphal cross of the church consists of a sculpture of Christ, probably made around 1200, mounted on a cross of later date – likely from the 18th century. The crown is a modern replica made with the triumphal cross in Lokrume Church as a model. It is approximately tall and wide.