I spotted a date printed on the inside cheek.
Ah, 1975, it's forty years old, I thought.
Febuary, right, ok.
The 4th. What date is it today? It was the 4th.
Yep, my sofa last exactly forty years between construction and destruction. Kind of like a Logan's Run for furniture...
(* always happy to sacrifice meaning for the sake of a pun)