Large Lot of Optical Components - Laser Optics - Beam Splitter - Microscope Head Please look at all pictures to get an idea of what included in the lot. Feel free to ask any questions you might have and we'll do our best to answer them for you. We can also take additional photos if needed. Overall solid condition. These components came out of a government. They were all in a box labeled "beam splitter assembly". I'm not sure if that is really what these components are. We can not find any markings on this stuff as to who made this or what it's for. **Please note as I was putting the tubes away I broke one of the lens caps of the tubes. It is not the concave lenses, but the glass cap that protects it. Nonetheless, it will probably need to be replaced**** Will ship international. please ask questions. Please look at pictures.