| Master's Seal | |
|---|---|
 | |
| Japanese name | 当主の証 |
| Romaji name | Tōshu no akashi |
| Item type | Key Item |
| Description | Lacquered wood with character. Himuro Family Master's seal. |
| Purpose | Move the altar of the Moon Shrine back, revealing an opening to the Moon Well |
| Location | Great Hall |
| Variants | N/A |
| Appearances | Fatal Frame |
Master's Seal is a key item found in the Great Hall in Fatal Frame.