The product is a postcard lot of 20 vintage Barrell Fototone miniature postcards featuring different views of San Francisco. Manufactured in 1923, these original postcards are made of cardboard and are from the White Border era. The postcards showcase various scenes of the city and are a collector's item for those interested in topographical postcards and cities & towns theme. These miniatures offer a glimpse into the history and culture of San Francisco in the early 20th century.