I AM HAVE A NEIL COST BOX CALL.....IT IS THE SIGNATURE SERIES I IT IS SIGNED AND DATED DEC. 1978. I ALSO HAVE ALL THE PAPERWORK AND ORIGINAL BOX THAT IT CAME IN AND IT IS IN GREAT WORKING CONDITION..SOUNDS GREAT. I AM WONDERING HOW MUCH THIS THING IS WORTH IF ANYTHING. IF ANYONE HAS ANY IDEAS PLEASE LET ME KNOW. ANY INFO WOULD BE GREATLY APPRECIATED. THANKS.