touchmark
/ˈtʌtʃmɑrk/
noun
- A distinctive mark or stamp used by a craftsman, especially a potter or silversmith, to identify their work.
- Each artisan has a unique touchmark that they press into their clay creations.
- The potter's touchmark on the bottom of the vase showed it was made in the 18th century.
- Collectors look for the touchmark to verify the authenticity of antique silver.