Yes, that's the first non-green PCB I can remember, too. And it took a while until I saw it become common -- I guess a big incentive was the appearance of side

Yes, that's the first non-green PCB I can remember, too. And it took a while until I saw it become common -- I guess a big incentive was the appearance of side windows on PC cases. At first all DIY (Dremel), then commercially sold.