On Thu, 31 Oct 2013 13:03:33 -0700, Oren wrote:

On Thu, 31 Oct 2013 19:45:01 +0000, Christy
m wrote:

I have these same windows and can't find how to open the top "sash" to
clean.

Dear Home Groaners Hub User,

Can you lower the top sash, clean and move it back up?

Probably single-hung. I didn't realize mine were. The bottom sashes
tilt in for easy cleaning but the tops don't move at all. :-(

You must have German Kaiserhof windows...