Mens Leather Bags Leather Messenger Bags?

Leather Messenger Bags? - mens leather bags

Where can I find a good market, antique brown leather messenger bag? Something like
http://www.kaboodle.com/reviews/classic-brown-tan-leather-messenger-courier-bag-satchel-mens-uk
or
http://www.polyvore.com/jost_unstripe_messenger_bag_brown/thing?id=9033189