The Beatles Mono Collection

Released in 1982, The Beatles Mono Collection is a boxed set of all Beatles' albums which were originally issued on mono LPs in the UK (Please Please Me to Yellow Submarine). EMI reportedly pressed a total of 10,000 copies of each reissue mono LP for sale individually. An unknown quantity of unnumbered red boxes (sometimes reported to be between 300 and 500) were issued in the UK, while 1000 numbered black boxed sets were assembled and issued in the United States by the Dutch East India Trading Co. These US sets originally sold for $79.00 and included a numbered certificate and an order blank for additional sets.

A new Mono Box, containing remastered mono versions of the Beatles' core albums (with the exception of Yellow Submarine album) plus Mono Masters compilation, was released on 9 September 2009 along with Stereo Box and new stereo reissues of the individual albums, including the first four albums given their stereo debuts on CD.

Source https://en.wikipedia.org/wiki/The_Beatles_Mono_Collection#:~:text=Released%20in%201982%2C%20The%20Beatles%20Mono%20Collection%20is,of%20each%20reissue%20mono%20LP%20for%20sale%20individually.