These little vintage computer components are interesting and have many possibilities . They look like they were in some production to document the interiors of the pieces. Very intricate cross sections— these study pieces definitely seem to be put to some archival use. They are nice little tactile pieces for a table or, if you have a light table a great little collection display. There are so many pieces— I think somewhere over 70 and they all vary in different finishes as these were still in production while others look completed with etched numbers and notations on most of them. Sold as a collection as shown.