2 Metropolitan Cookbooks Life Insurance Vintage Circa 1930s Recipe Booklets 64 Pages Each.

The green one looks like 1920s, possibly 1930s.

Not sure about the other one but guessing the 30s.

There is light staining on the covers.  

The black one has water damage (stains) all through the book, mostly at the top.  

It also has a small tear on the front cover.