Not sure if yours would have it or where, but I discovered today my 63 Valiant has a 'secondary ID', it was stamped in the rear seat brace (mine's a convertible), that had several digits of the VIN, and several off the fender tag.
'69 would have the last digits of VIN in the trunk rail and on radiator support; but that does not help him with fender tag. In an ideal world he would find his build sheet tucked into the springs of his back seat and it would tell him everything!