core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

seatNumber

Canonical URL: http://schema.org/seatNumber

Thing > Property > seatNumber

The location of the reserved seat (e.g., 27).
Values expected to be one of these types
Text
Used on these types
Seat

Schema Version 3.4