Window Sash Lock
A contractor from Minnesota says:
November 3, 2014
I am trying to find a replacement part for this window sash lock.
Dave from SWISCO responded:
November 5, 2014
The lock you show in your photo looks like an old Andersen casement window lock use around 1945 to 1960. Does that sounds about right to you? I'm afraid it's no longer available, though. I suggest our 38-079 and 38-098 along with the 38-079 keeper. I believe these could be used as a replacement, but see what you think.