Original early to mid 1900's, not modern
Back has spring loaded tilt/rock function
Seat height adjusts up down on screw post
Believe seat base also tilts but mechanism will need lubrication at a minimum
Solid chair showing typical use and wear
No major structural or physical issues
Upper rail on seat back looks to have repaired crack
Seat back looks to have replacement screws/bolts into bracket
Shows some nicks, chips dents, scuffs and marks as pictured
Can be used as is or would make nice restoration candidate
Stock #400-12