How Do I Figure Out What Brand My Old Wood Windows Are?

What Brand or manufacturer is my window? 

Why can't I find any name or brand on my old wood window?  

Some windows have no codes or names on the windows at all. These windows were most likely from a local or regional company; these windows are referred to as in shop brand windows. However, many times you'll find an ID Code On Your Windows or Doors by a glass code, which is an opaque etching  typically located in one corder of the glass that shows the date and manufacturer. Many aluminum and vinyl windows have an AAMA [American Architectural Manufacturer's Association] small sticker to denote certification. This is typicallly applied to the window frame or sash, and is about ½” wide and 3 ½” long; In some cases we can help, unless the window company has gone out of business. 

If this is the case, send us as much info as you have: 
https://www.biltbestwindowparts.com/content/allwindowdoorpartscom-hard-f...

SEE THIS WINDOW INFO PDF: 
http://www.biltbestwindowparts.com/pdf/How%20To%20Measure%20-%20BiltBest...