Nucleus/Ian Carr’72 – Belladonna – Vertigo – UK – 40.500 (gfc, swirl label, swirl inner)

Nucleus/Ian Carr’73 – Roots – Vertigo – UK – 15.500 (jazz/prog)

Nucleus/Ian Carr’75 – Snakehips Etcetera – Vertigo – UK – 10.500 (jazz/prog)

Number One Ensemble’80 – Gipsylon – Radio – Italy – 3500 (italo-disco)

I Nuovi Angeli’73 – Troppo Bella – Philips – Austria – 1500 (italo-pop/rock)

I Nuovi Angeli’74 – Stasera Clowns – Polydor – Italy – 9500 (inner, rock)

The Nutty Professor’96 – Soundtrack – Def Jam – USA – 2200 (still sealed, rap – LL Cool J, Jay Z, Monica, Warren G, Da Bassment, Case, Montell Jordan)

O Brother, Where Art Thou?’03 – Music From The Film – Lost Highway – USA – 2500 (2LP, soundtrack)

Sinead O’Connor’90 – I Do Not Want What I Haven’t Got – Ensign – Italy – 2500 (inner, pop vocal)

Sinead O’Connor’92 – Am I Not Your Girl – Ensign – Germany – 3500 (inner, pop/jazz vocal)

Oasis’95 – (What’s The Story) Morning Glory? – Creation – UK – 15.500 (2LP, triple gfc, 2 black inners)

Ocean’77 – God’s Clown – Crypto – France – 15.500 (hard rock/prog)

Ocean’81 – Same – Barclay – France – 5500 (inner, hard rock/prog)

Ocean’78 – Drift Message – Schnoutz – Switzerland – 7500 (inner, Swiss band, autographs on back cover)

Billy Ocean’89 – Greatest Hits – Jive – EEC – 1800 (inner, soul/funk)

3821. The Oceans’82 – Movin Cruisin – Gira – Spain – 2500 (disco project by La Bionda)

Octopus’69 – Same – ESP-Disk – USA – 15.500 (in shrink, prog)

Odissea’73 – Same – Ri-Fi – Italy – 12.500 (gfc, inner, Italian prog)

Odissea/Corrado Castellari/Franco Simone’73 – Same – Ri-Fi – Italy – 100 (promo sampler)

Odmenn’70 – Same – Sun – Iceland – 20.500 (1979 reissue, 2LP, gfc with attached booklet, prog)

Odyssee’78 – White Swan – MPA – Germany – 9500 (insert, prog)

Jacques Offenbach’65 – Highlights From The Tales Of Hoffmann – HMV – UK – 2500 (classical, Cluytens)

The Offspring’98 – Americana – Columbia – USA – 7500 (inner, incl. superhit Pretty Fly For A White Guy)

Claude Ogiz’80 – Les Balieues De L’Univers – private – Switzerland – 5500 (gfc, Swiss artist)

3830. Oh! Calcutta!’71 – Same – Calcutta – Holland – 6500 (poster gfc, featuring Thijs Van Leer)

Ohio Players’72 – Pleasure – Westbound – USA – 3500 (gfc, label inner, funk)

Ohio Players’75 – Fire – Mercury – Japan – 2000 (insert, funk)

Ohio Players’79 – Everybody Up – Arista – Holland – 2500 (gfc, funk)

3834. David & Igor Oistrach’65 – Max Bruch/Beethoven – Deutsche Grammophon – Germany – 3500 (classical)

David Oistrakh’69 – Dacapo – HorZu – Germany – 1500 (label inner, classical violin)

3836. Boulat Okoudjava’72 – Poete Compositeur Sovietique – Le Chant Du Monde – France – 7500 (triple gfc, Булат Окуджава)

3837. Boulat Okoudjava’80 – Le Soldat En Papier – Le Chant Du Monde – France – 5500 (booklet, Булат Окуджава)

3838. Bulat Okudshawa’88 – Lieder II – Plane – Germany – 7500 (inner, Булат Окуджава)

Finn Olafsson’s Savannah’77 – Same – KMF – Denmark – 5500 (ex-Ache guitarist, progressive)

The Old Man And The Sea’90 – Unreleased Second Album – private – Denmark – 9500 (prog)

Mike Oldfield’82 – Five Miles Out – Virgin – UK – 1800 (gfc, rock/prog)

Mike Oldfield’83 – Crises – Virgin – UK – 2600 (including Moonlight Shadow)

Mike Oldfield’91 – Heaven’s Open – Virgin – Germany – 2800 (inner)

Mike Oldfield’92 – Tubular Bells II – Warner – Germany – 3500

Mike Oldfield’93 – Elements-The Best Of – Virgin – UK – 5500 (16 best tracks)

Sally Oldfield’90 – Natasha – CBS – Holland – 2000 (inner)

3847. Olsson & Fitinghoff’74 – Same – CBS – Sweden – 5500 (inner, folk/rock)

Olympic’78 – Overhead – Supraphon – Czechoslovakia – 1500 (rock)

Omega Redstar’68 – Trombitas Fredi Es A Rettenetes Emberek – Qualiton – Hungary – 8500 (psych)

Omega’73 – Same – Bacillus – Germany – 4500 (gfc, English-language album, Dieter Dierks, prog)

Omega’79 – Gammapolis – Pepita – Hungary – 3500 (gfc, prog)

Omega’81 – Working – WEA – Germany – 1800 (prog)

Omega’82 – ХI – Pepita – Hungary – 1800 (insert, prog)

Once Upon A Time In America’84 – Original Soundtrack – Mercury – Holland – 3800 (promo, Ennio Morricone)

One For All’05 – Killer Joe – Venus – Japan – 7500 (obi, insert, audiophile jazz sextet)

3856. One More Chance’73 – Various Artists – Charisma – UK – 3500 (inner, compilation of singles by Genesis, VDGG, Audience, The Nice, Rare Bird, etc)

Yoko Ono’71 – Fly – Apple – USA – 10.500 (2LP, gfc, 2 inners, poster, card, featuring John Lennon, Ringo)

3858. Yoko Ono’73 – Approximately Infinite Universe – Apple – UK – 7500 (2LP, 2 inners, gfc)

Opale’81 – La Derniere Toile Du Maitre – Podom – France – 9500 (gfc, prog)

Opus’84 – Live Is Life – Polydor – Germany – 2500 (inner, pop/disco)

Opus Avantra’75 – Lord Cromwell – Suono – Italy – 6500 (gfc, prog)

3862. Opus III & Friends’70 – Same – Sonet – Sweden – 18.500 (prog)

3863. ORB’95 – Orbus Terrarum – Island – UK – 5500 (gimmick plastic cover, 2 map inners, electronic)

Roy Orbison’64 – More Of Roy Orbison’s Greatest Hits – Monument – USA – 2800 (60’s)

Roy Orbison’66 – The Classic Roy Orbison – London – UK – 4500 (60’s)

Roy Orbison’72 – Memphis – London – UK – 3500 (60’s)

Roy Orbison’72 – Sings – London – UK – 3500 (60’s)

Roy Orbison’87 – In Dreams-The Greatest Hits – Virgin – Germany – 3800 (2LP, 60’s)

Roy Orbison’89 – A Black And White Night Live – Virgin – Italy – 3500 (inner, 60’s)

Roy Orbison’92 – King Of Hearts – Virgin – UK – 4500 (inner, 60’s)

Roy Orbison’11 – The Monument/Singles Collection – Sony – EU – 5500 (2LP, sticker, still sealed, 60’s)