This is the complete military catalog that was published by Bailey Banks and Biddle in 1928. BBB was considered the best in insignia during that era. A great booklet for the collector.
This catalog exceeds the e-mail attachment and can't just be e-mailed to you. Please use the following link to download this catalog. No charge to do this.
http://www.mediafire.com/file/0xqygl4slllhla3/BBB-1928Catalog.pdf