The product is a first edition book titled "Diesel & Electric Locos of BR 87s LM Region 25Kv Electrics 1981." It focuses on the railwayana and transportation collectables of British Rail in the London Midland region. Written by British Rail, this book provides detailed information on the diesel and electric locomotives used in the region during the specified era. Made in the United Kingdom, this book is a valuable addition for collectors and enthusiasts interested in British railway history.