The shapes of giboshi have changed according to the age, and as an example, giboshi whose hoju part is relatively small, with a diameter larger than the height, is called "Kamakura type."
擬宝珠は時代により形状が変化しており、一例として高さに比べ直径の大きく頭の宝珠状部分が小さいものを「鎌倉型」という。