Help with lamp socket

[Scott H in Wheaton]

I need to replace the pictured socket in an outdoor light, sometimes referred to as a sign light. They are currently very popular for outdoor lighting on restaurants going for a vintage look....except mine is really an old one, not a reproduction.

How do I go about finding a replacement for this?

 

[Scott H in Wheaton]

Another view

 

[Scott H in Wheaton]

And the hardware that held it all together

 

[raiderhillbilly]

http://chicagopartsnetwork.com/by-l...l-light-socket-surface-mount-lamp-holder.aspx

http://www.amazon.com/s/ref=nb_sb_n...iece+Mogul+surface-mount+porcelain+lampholder