Great catalogs for reference , identification and education. Orange cover from 1938? , only date reference I found. Cat E on cover 8x 10 1/2" , 504 pages Starrett , Billings , Kennedy , Millers Falls , Armstrong , Skill , Crescent, Brown & Sharpe are a few of the many brands covered. Hardware , tooling , oiling equipment hoists etc. Every page loaded with photos and specs $17 plus shipping SOLD Gray cover is from 1949 , cat F , 518 pages , later versions of the products listed above. $15 plus shipping SOLD Send a zip code USPMO , PayPal , buyer handles fees Send a Private message Thanks Roy