Rare 'PH 5/4' Ceiling Lamp

Brass, perforated metal top shade, single layer opaline glass. History: Four of these perforated PH 5/4 pendant were made for the St. Peter's chapel in Tappernøje, Denmark. They were made to order by Louis Poulsen. The design avoids the large fragile O-5 glass shades, but the material still provides diffused upwards light.