through research im pretty sure this is
glenn of california but some have suggested it was designed by baughman. there are no maker marks etc so what might be some construction factors to verify maker. ty
<img class="wpforo-default-image-attachment wpforoimg" src=" http://d1t1u890k7d3ys.cloudfront.net/cdn/farfuture/ZqbUrnXUAOxTtwYMlwnbQe8m-_D9rm2CPB0e9UJ9Vro/mtime:1489148803/sites/default/files/forum/2016/01/124726839164619817842763416134573938480914n. 
If you need any help, please contact us at – info@designaddict.com