Vintage collectible flash cube lot of 6. This lot includes four Sylvania Blue Dot flash cubes and two GE flash cubes, all in their original packaging. These flash cubes were popular in the 1960s and 1970s and fit most cameras that use a standard flash socket. Each cube has four bulbs that rotate after each shot, giving you four flashes per cube. These flash cubes are untested and sold as is, but they appear to be in good condition with no visible damage.