Three working strings of Mid Century Christmas lights, 29 lights in all. They're the larger C-9 size, typically used outdoors, but my parents actually put them on our Christmas tree and in our windows. One strand is an extra long 20 foot Paramount string with 15 sockets spaced about 13-14 inches apart. The other two strings hold 7 lights each, one measuring a little over 10 feet, the other about 12-1/2 feet. Both are Noma, one has a Glolite UL tag (Noma bought Glolite in 1953). The longer 7-light string is older, with 2-part black and red-brown Bakelite sockets marked Noma at the bases.

The light bulbs (GE, Paramount, Westinghouse, and Japan) all work. But old light bulbs can go out at any time, so I've included 4 extras. Seven of the bulbs are the harder to find GE Glow Bright swirl flame lights, shown in the third photo. The light bulbs have cardboard boxes, some of which are a little ragged.