Prospective 21e Siècle

                                     
                                      

                                           

                                           

                                            

                                    

                                            

                                            

Prospective 21e Siècle sleeves were "manufactured using “Procédé Heliophore”  - a technique originally developed in the 1930s by Louis Defay to transform aluminum paper for printing" (Discogs). But nobody seems to know the names of the designer or designers, who were uncredited. 

Marring the immaculate and relentless silver-ness of the imprint trajectory, splashes of colour: 

                                      

                                          

Some kind of catalogue