Has anyone seen this before? the water service from the basement floor a galvanized pipe nipple? I didn't break up the floor to see what was under it but I thought it might be off a lead service. The three houses I've seen this in were in the Detroit area and ranged in age from the 1920's to the 50's I didn't think they would've ran galvanized from the stop box but you never know. thanks to anyone who has seen this before and can shed some light.
Kevin