The K code 1988 would have been a One Touch + . It’s not often that I see faded black grills past 1985, not that newer black grills don’t fade but they don’t come up nearly as much. Nice find!
GRAILS: 1950s era Black or Custom finish 22.5, 1978-1980 Blue 22 MBH, 1974-78 Lime 18.5 MBH