Two (2) American. Both C.1870s Marked, "P & A MFG CO WATERBURY CONN MADE IN USA". Cobalt base lamp made by LaBelle Glass Co, Wheeling Virginia. Thuro, 206, Fig. 6. Cobalt chimney by Ditherage Glass Co. 4" x 8" x 15". No chips, cracks or damage. Est. $200-300. CODE-OILL. CODE-LAM