Head of pin ca. 8th-7th century B.C. Iran The head of this bronze pin probably represents a frog, view from above. It has a triangular head with bulging eyes and a globular body. All of its legs face forward. Part of the shaft of the pin is preserved, projecting from the rear of the frog.This pinhead was excavated at Surkh Dum, a settlement site in Luristan in the Zagros Mountains of western Iran. It was found in a structure interpreted as a sanctuary and was thus probably an offering to a god. Pins were probably used to fasten clothing and as objects of adornment in their own right.. Head of pin 323965