A true gem for us who like to get 45 mono mixes on LP close to the fact. A charity sampler sold in favour of mentally handicapped children, containing twelve single cuts from the late sixties. Most of them only existed in mono prior to this, which probably was the reason they decided to release it in mono only. The only track sounding like some kind of a fold in comparison to the stereo is "Pinball Wizard", but this version is fading somewhat faster at the end and sounds a tiny bit speeded in comparison. "First Of May" has less reverb than on the Odessa mono album https://monolover.blogspot.com/2013/08/bee-geesodessa-58204950-69-uk-mono.html and the a-capella song at the end fades down to a lower level. BeeGees sometimes had different mixes for mono albums and mono 45:s and this is probably the single version. "Something In the Air", "Oh Happy Day", "I'm Beside Myself" and "Walk On Guilded Splinters" are the mono '45 versions. Never heard the single versions of "Badge" or "St. Louis", but those on here sounds true mono. The audio is tophole all through providing very good listening. To my knowledge this UK was the only issue. If You're interested in more late Polydor mono 45 mixes on LP also check the triple album "Pop Power '69" https://monolover.blogspot.com/2020/10/pop-power-69-109-60123-69-uk-mono.html (SÄM*) (YMÖ*)