Methods and apparatus for producing small, bright nanometric light sources from apertures that are smaller than the wavelength of the emitted light. The technique employs only vertically oriented semi-dry mortar layers between the stones. The box 100 has a bracket system 300 comprised of an upper bracket 310, a central bracket 320 and a lower bracket 340 which have complementary geometric relationships that facilitate attachment to the multiple structures. For selector planes in which edges are encoded, template matchingpattern replacement works well, and does not affect halftoned regions, as they are not encoded in this image. The mold member includes a first mold part and a second mold part inserted into the first mold part and formed with the mold space section. The necessary incisions in the form of cuts, slots or slits are made from the exposed side of the second layer in a direction toward the exposed side of the first layer by resorting to one or more high-energy streams, such as laser beams, electron beams or liquid jets.