I am hoping to find further pictures of a Hounslow backsword pictured in "Swords and Sword Makers of England and Scotland" by Richard H. Bezdek, p. 276, lower left corner, described as c. 1630-1640.
If anyone knows where I might find more pictures of this hilt I would greatly appreciate the help.

You might find something to interest you here:

http://www.myArmoury.com/talk/viewtopic.php?t=9752

The Museum of London apparently has a large collection of Hounslow swords. I suspect that the hanger shown in detail here is a Hounslow piece from the MOL. The backsword shown in the first post is at the MOL and is of the right period to be Hounslow.