使用其他文件的理由:“A PNG version of this file is now available.”
Many 7-inch US-distributed vinyl products were released with generic sleeves, either plain or company-made. While picture sleeves became common by the 1960s (45 RPM: The History, Heroes and Villains of a Pop Music Revolution by Jim Dawson and Steve Propes, p. 68), this product lacked a picture sleeve as seen in eBay.
Further readings
Vinyl: A History of the Analogue Record by Richard Osborne. ISBN978-1472434333.
The Beatles' Story on Capitol Records – Part One: Beatlemania & The Singles. ISBN978-0966264913.