"OLD Stab Loc's are brown...the red tip ones were the last 'new' from FPE. The replacements (American) are Black with white numbers.
Actually, I have four Stab-Loks from the brown era that are... tie-dyed? Seriously hippie-dippy. Came out of a house built in 1953. Different colors of resin all marbled together: pink, blue, yellow.