Solid brass 2 light unwired cluster head with adjustable on/off pullchain sockets. Top cap is easily removed. Bottom is tapped 1/4 IP (1/2" diameter) thread. Top stem is threaded 1/8 IP (3/8" diameter) with knurled nut.
Brass plated 2-light "S" style cluster body. Arms are tapped 1/8 IP (3/8" diameter) standard lamp thread to accomodate a standard brass socket. Top hole is tapped 1/8 IP, bottom hole is tapped 1/4 IP (1/2" diameter). Top cap is easily removed. Overall spread is 7".