Like most clubs, Collingwood has used its fair share of logos over the journey. So here is a quick rundown on the main logos we've used as our official versions, taken mostly from our annual reports.
Please note that there is a high degree of fluidity with the use of these logos! Very rarely until the last 25 years did one logo stop and a new one take its place straight away. Also, by the time it appeared in the annual report it might already have started to appear on merchandise, communications etc. So the shield that first appeared in the 1978 annual report, for example, was definitely used in some instances in 1977 (mainly the colour version). But trying to work out a first date of usage for every logo was impossible, so we've stuck with annual reports as the starting point, even though that's not always perfect.
Logo 1 Used on letterheads from earliest seen through to late 1940s/early 50s
Logo 2 A truncated and modified version of the letterhead logo, used regularly throughout the same period in other club communications.
Logo 3 Same as logo 2 but with the word 'social' added ('Collingwood Football Social Club'). Came into use after the Social Club opened in 1941 
Logo 4A&B Came into use early 1950s. First use around 1951. 4A used in Annual Report 1953 and 4B in 1954.
Logo 5 Appeared in Annual Reports 1955-57 
Logo 6A&B Although the Magpie sitting on fencepost had appeared as far back as 1913, and had been appearing on season tickets regularly since 1931, this is its first appearance as the club's logo in Annual Reports. Was used in two formats – first as a small image (6A) and second as a drawing (6B). 6A used 1958-65. 6B used 1968-72 and again 1975-77. 6B also used on membership tickets 1931-81. 
Logo 7A Circle with Collingwood Football Club in rim now appears behind magpie on fence. Used in the 1966 and 1967 Annual Reports, then 1973-74. 
Logo 7B Colour version of 7A, used in Christmas cards etc. 
Logo 8A Shield with colour rim and VFL logo. Mono version also used (8B) in 1978-81 Annual Reports. Different version of this shield continued to be used from time to time in club merchandise etc through the 1980s 
Logo 8C Similar shield but with Magpie now looking to the right and no VFL logo. Used in 1982 Annual Report. 
Logo 9 Magpie looking to the right, with circle behind it. Plainer version of Logo 7A, plus with magpie looking in different direction. Used in 1983 Annual Report 
Logo 10 Square format and stylised magpie. Used in 1984 Annual Report only. 
Logo 11 Same as Logo 9 but now with the word 'Limited' added inside rim ('Collingwood Football Club Limited'). Used from 1985-91 
Logo 12 Centenary year logo. First appeared in 1991 Annual Report, alongside Logo 11. Used on its own in 1992. 
Logo 13 After the Centenary year, club adopted the Centenary year logo but with the words 'Est 1892' in the shield between the two flags, which on the Centenary version had carried the words '100 Years'. 
Logo 14 Changed in 2004 Annual Report so Australian flag now on the left. 
Logo 15 Logo for the club's 125th anniversary year in 2017 
Logo 16 Introduced in 2018.
CHRONOLOGY
1892-c1950 Logos 1 and 2
1941-1960s Logo 3
c1951-c1955 Logo 4A/B
1955-57 Logo 5
1958-65 Logo 6A
1966-67 Logo 7A
1968-72 Logo 6B
1973-74 Logo 7A
1975-77 Logo 6B
1978-81 Logo 8B
1982 Logo 8C
1983 Logo 9
1984 Logo 10
1985-91 Logo 11
1992 Logo 12
1993-2003 Logo 13
2004-16 Logo 14
2017 125th logo
2018- Current logo