Short Oiled Rubbed Bronze Base Part Number B12. Comes in Tall A12 and short (B12R) and tall (A12R) Ribbed as well.
Don't forget the candle cap Part Number CAP12
Tall Brushed Nickel Base A1
Short Brushed Nickel B1
Tall Oil Rubbed Bronze Base PN A12
Hammered Tall Oil Rubbed Bronze Base A12H