Question: The Paul McCartney Collection is a series of 16 remastered CDs by Paul McCartney of his solo and Wings albums, the first half comprised albums from London Town is the sixth studio album by Wings, released in what year?

full_context: Document 1: Past Masters: Past Masters is a two-disc compilation album set by the Beatles, released in 1988 as part of the first issue of the band's entire catalogue on compact disc. Compiled by noted Beatles historian Mark Lewisohn, this collection of many of the band's biggest hits as well as rarities includes every song released commercially by the band that was not available on the Beatles' 12 original UK albums or the "Magical Mystery Tour" LP.
Document 2: Deliver Your Children: "Deliver Your Children" is a song written by Denny Laine and Paul McCartney that was first issued on Wings' 1978 album "London Town". It was also released as the B-side of Wings' single "I've Had Enough." In the Netherlands, it received enough airplay to be ranked on the national charts along with its A-side, and joint single reached #13. On some charts within the Netherlands "Deliver Your Children" was ranked alone on the single charts, and it reached #9 on the Stichting Nederlandse Top 40 chart. Laine also released solo recordings of the song.
Document 3: London Town (Wings album): London Town is the sixth studio album by Wings, released in 1978. The album had a long and tumultuous gestation which saw the loss of two band members, the birth of a baby and the release of the then best-selling single in British history.
Document 4: Flaming Pie: Flaming Pie is the tenth solo studio album by Paul McCartney under his own name, first released in 1997. His first studio album in over four years, it was mostly recorded following McCartney's involvement in the highly successful "Beatles Anthology" project. The album was recorded in several locations over two years, 1995 and 1997, featuring two songs dating from 1992. The album featured several of McCartney's family members and friends, most notably McCartney's son, James McCartney. In "Flaming Pie"'s liner notes, McCartney said: ""[The Beatles Anthology]" reminded me of The Beatles' standards and the standards that we reached with the songs. So in a way it was a refresher course that set the framework for this album."
Document 5: Off the Ground: Off the Ground is the ninth solo studio album by Paul McCartney under his own name (discounting then his Wings-era discography, among other releases), released in 1993. As his first studio album of the 1990s, it is also the follow-up to the well-received "Flowers in the Dirt" (1989).
Document 6: Backwards Traveller/Cuff Link: "Backwards Traveller"/"Cuff Link" is a medley of two short songs written by Paul McCartney that was first released on Wings' 1978 album "London Town". The medley was also released as the B-side of Wings' No. 1 single "With a Little Luck". Both "Backwards Traveller" and "Cuff Link" were recorded in October 1977 and completed in January 1978. By this point in the "London Town" recording sessions, guitarist Jimmy McCulloch and drummer Joe English had left the band, so the songs were recorded by only McCartney, Linda McCartney and Denny Laine.
Document 7: Wings at the Speed of Sound: Wings at the Speed of Sound is the fifth studio album by Wings, released on 25 March 1976 as a follow-up to their previous album "Venus and Mars". Issued at the height of the band's popularity, it reached the top spot on the US album chart and peaked at number 2 on the UK album chart. Both singles from the album also reached the top 5 of the UK and US singles charts, with 'Silly Love Songs' reaching number 1 in the US.
Document 8: The Paul McCartney Collection: The Paul McCartney Collection is a series of 16 remastered CDs by Paul McCartney of his solo and Wings albums, with most adding bonus tracks. The albums in the collection were released separately, with the first eight released on 7 June 1993, and the remainder on 9 August of the same year. The first half comprised albums from "McCartney" (1970) to "London Town" (1978), and the second half "Wings Greatest" (1978) to "Flowers in the Dirt" (1989).
Document 9: Live at London's Talk of the Town: Live at London's Talk of the Town is a 1968 live album released by Diana Ross & the Supremes on the Motown label, recorded at the "Talk of the Town" nightclub. This performance marked the first time that new member Cindy Birdsong had performed overseas with original Supremes Diana Ross and Mary Wilson, a year after original founding member Florence Ballard was ousted. The group performed a variation of standards, show tunes, and their own classics with British rock stars Mick Jagger and Paul McCartney reportedly in attendance. The songs recorded are from the group's 1968 European tour. That European tour also garnered a famous Swedish television special that was used as a catalyst to promote this album.
Document 10: The Solo Collection: The Solo Collection is a box set detailing the solo career of Freddie Mercury; it includes the material Mercury recorded before joining up with Queen, up through the 1993 No More Brothers remixes. Mercury's singles and two studio albums are included, as well as a disc of instrumentals, numerous rare tracks, and a set of interviews conducted by David Wigg. Also included are two DVDs: a collection of music videos, and a documentary covering Mercury's life.
Document 11: Wings (Ringo Starr song): "Wings" is a song by Ringo Starr, originally recorded for and released as a single from the album "Ringo the 4th". It was co-written with Vini Poncia in 1977. Starr later re-recorded it, produced by Starr and Bruce Sugar, and released it as a single from his 2012 studio album, "Ringo 2012".
Document 12: Wings Greatest: Wings Greatest is a compilation album by Wings and is their eighth album as well as Paul McCartney's 10th since leaving the Beatles. It is notable as being the first official retrospective release from McCartney's post-Beatles career. Excepting interest in its vinyl LP mix, this collection has been superseded by the releases of "All the Best!", "" and "Pure McCartney".
Document 13: McCartney II: McCartney II is the second completely solo studio album by Paul McCartney, and the first since the formation of Wings in 1971. It was released in 1980, a year before the band's dissolution and while their future lay in limbo. The album is a significant departure for McCartney, as much of it relies heavily on synthesizers and studio experimentation. It was reissued on 13 June 2011 as part of the "Paul McCartney Archive Collection". The album remains a cult favourite.
Document 14: Band on the Run: Band on the Run is the third studio album by Paul McCartney and Wings, released in December 1973. It marked the fifth album by Paul McCartney since his departure from the Beatles in April 1970. Although sales were modest initially, its commercial performance was aided by two hit singles – "Jet" and "Band on the Run" – such that it became the top-selling studio album of 1974 in the United Kingdom and Australia; in addition to revitalising McCartney's critical standing. It remains McCartney's most successful album and the most celebrated of his post-Beatles works.
Document 15: George Harrison – The Vinyl Collection: George Harrison – The Vinyl Collection is a compilation box set by English musician George Harrison, released on 24 February 2017. The box set contains sixteen vinyl LPs – comprising Harrison's entire output of studio albums from "Wonderwall Music" (1968) to the posthumously released "Brainwashed" (2002), together with the double live album "Live in Japan" (1992) – and two 12-inch vinyl, picture-disc singles.<ref name="Rohrbach/Paste">Paul Rohrbach, "George Harrison Solo Vinyl Box Set in the Works", "Paste", 17 January 2017 (retrieved 4 March 2017).</ref>
ground_truth: 1978