The purpose of this exercise is to determine when this basement stair enclosure was constructed, with the ultimate goal of determining when the house was converted from single family occupancy to 2 family.

Thanks.

Ralph

My guess is when he first wife found him in bed with the beaver broad he did her in, an walled her up in the stair enclosure (the first one )

Sometimes guys get happy and think they can wall up any beaver broad without a thought of ever getting caught .

Sounds like your on the case .Py