Two different working sets of 1950s or early 1960s Christmas light strings, each with 15 type C7 bulbs and Phenolic or Bakelite sockets and plugs. The blue and green box does not have a brand or manufacturer name, but the UL tag states the set was made in the USA. The connector socket on the Star-Lite cord is marked Gilbert - the UL label doesn't specify a country of origin. This set has metal branch clips on the sockets. There are no issues with the wiring, plugs, or sockets and all the lights work.