Socks by Bob - Here's an admirable gentleman!

Check out this article and video about an octogenarian man who has made over 10,000 pairs of socks for shelters:

http://www.cbc.ca/news/canada/saskatoon/88-year-old-saskatoon-man-socks-1.3922778

Wow.  What a terrific charity knitting project!

He has built his own circular sock knitting machine, and he's apparently making long, long tubes of stockinette, which he later turns into tube socks.  I am curious how they are finished.  I cannot tell from the photos, but I suppose you could simple serge the toe end and the top end, or use a sewing machine.