Pictures and text below sourced from the good people (Sellam) at the Vintage Computer Festival

This C64 computer is Serial #19 and contains a Revision 6 motherboard built just after Commodore debuted the 64 at the January 1982 Winter Consumer Electronics Show in Las Vegas. The computer is in working condition and features ceramic prototype chips developed specifically for the 64 by Commodore’s MOS Technology semiconductor division, including the 6581 Sound Interface Device (SID), 6567 Video Interface Chip (VIC II), and 6526 Complex Interface Adaptor (CIA).