I was reading about this the other day. It's from the new book by Jeffrey Brown called 'Darth Vader and son' and it's been Lucas approved too.
I guess it's an interesting and fun take on Vader - despite the fact that he's actually a murdering, force-choking, arm-severing tyrant lol.
thevintagetoyadvertiser.org 1970s and 80s vintage toy ads and other retro paperworks
imperialgunnery.com Vintage Star Wars action figure weapons and accessories guide