He sold 4,000,5,000 or over 6,000 copies by mail at a time when a thousand units sold were considered a stunning achievement, and he boxed them in packaging he had designed himself.
He sold 4,000 by mail at a time. He sold 5,000 by mail at a time. He sold over 6,000 copies by mail at a time. A thousand units sold were considered a stunning achievement. He boxed them in. He was packaging. He had designed himself.