This is a rare and hard to find collection of the McGraw-Hill Master Small-Engine Repair Educational Series published by the McGraw-Hill Continuing Education Center exclusively for NRI students. It is the 1979 edition copyrighted by the NRI. This set is almost complete and includes 2ER, 3ER/7FW, 4ER, 5ER, 6ER-2, ER101-02-03, ER104-05-06, ER107-08-09, ER110-111-112, ER119-120-121, ER122-123-124, ER125-126-127, ER128-129-130, ER131-132-133, ER134-135-136, ER137-138-139, ER140-141-142, and ER143-144-145. Learn everything there is to know about small engine repair with this McGraw-Hill Educational Series on Small-Engine Repair. Please see photos for condition.