Contraption installed in the floor

(James S. Saunders, NC License # 3728) #1

This item was installed in the floor in the living room and was about 2-3 feet from the fireplace. What is this? This was a home built in 1930.

(David A. Andersen, TN HI# 40) #2

Gas valve.

Is this a test?

(Russell G. Cloyd, KY LIC #166164) #3

Gas valve for a log lighter.