An absolute amazing center peace to any collection. Due to the rarity of this I've never made any attempts to run it. When p&a started to branch out  of the lamp industry in an attempt to survive the modernization of lighting (1890) they collaborated with perfection and this is was the Unsuccessful project they  they came up with. Shipping records His manufacturing records  are real sparce but it's believed a run of Roughly 50 where made and less than 5 known examples still Exist. Thank you for looking.