Among the 1,000 statues (more precisely 1,001 statues) standing together in large numbers on either side of the principal image at Sanjusangen-do, some statues have an inscription saying the statue was made by Tankei.
三十三間堂の本尊の左右に林立する千体（正確には1,001体）千手観音立像中にも湛慶作の銘をもつものが数体ある。