Searching for German window handle

Thanks for reaching out. We do not have an exact match for the type of window lock you have but our 38-142 may be worth considering as a replacement. While it does resemble your lock, you'll need to carefully compare the measurement to determine if this would be the right fit. This is the closes match we have. 

Take a look at the dimensions below and see what you think.

Alternate image for 38-142

Alternate view of 38-142