Short Oiled Rubbed Bronze Base Part Number B12. Comes in Tall PN A12 and short (B12R) and tall (A12R) Ribbed as well.
Don't forget the candle cap Part Number CAP12
Tall Brushed Nickel Base PN A1
Tall Oil Rubbed Bronze Base PN A12
Short Matte Black Base PN B13
Short Brushed Nickel PN B1