eBay - Cool Old Brass Sargent Padlock with Dual Shearlines
Old Vintage Sargent Dual Shearline Padlock Antique Lock W Change & Master Key.
http://www.ebay.com/itm/Old-Vintage-Sargent-Dual-Shearline-Padlock-Antique-Lock-W-Change-Master-Key-/131480847472?pt=LH_DefaultDomain_0&hash=item1e9cde8470
Auction ends in approx 23 hours - this one's not going cheap that's for sure
Happy hunting,
Sean