Penny Black (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Penny Black" in English language version.

refsWebsite

Global rank English rank

3web.archive.org

1^st place

1^st place

2books.google.com

3^rd place

3^rd place

1warwickandwarwick.com

low place

low place

8^th place

10^th place

1imagesoftheworld.org

low place

low place

1davidfeldman.com

low place

low place

1postalheritage.org.uk

low place

low place

1bl.uk

1,234^th place

779^th place

1firstissues.org

low place

low place

1pennyblackstamp.co.uk

low place

low place

432^nd place

278^th place

1independent.co.uk

36^th place

33^rd place

1ghostarchive.org

32^nd place

21^st place

bbc.co.uk

"The Penny Post revolutionary who transformed how we send letters". BBC. Retrieved 14 August 2019.

bl.uk

British Library collections – Philatelic (Archived 23 May 2013 at the Wayback Machine). Accessed 30 April 2013.

books.google.com

Garfield, Simon (January 2009). The Error World: An Affair with Stamps. Boston: Houghton Mifflin Harcourt. p. 118. ISBN 978-0-15-101396-8.
O'Donnell, Kevin; Winger, Larry (1997). Internet for Scientists. CRC Press. p. 19. ISBN 90-5702-222-2.

davidfeldman.com

Feldman, David (17 February 1999). The First Cover: May 1, 1840 (PDF). Geneva: David Feldman. pp. 1–17. Retrieved 7 December 2017.

firstissues.org

"Great Britain: Wednesday, May 6, 1840". First Issues Collectors Club. 3 November 2003. Retrieved 30 April 2013.

ghostarchive.org

"What is a Penny Black stamp? Google Doodle celebrates landmark British design". The Independent. 7 November 2016. Archived from the original on 25 May 2022.

gov.uk

"Introducing the new UK passport design" (PDF). Gov.uk. 7 November 2016.

imagesoftheworld.org

Taylor, R. A. "Wyon City Medal – 1837". Images of the World. Archived from the original on 19 April 2012. Retrieved 30 April 2013.

independent.co.uk

"What is a Penny Black stamp? Google Doodle celebrates landmark British design". The Independent. 7 November 2016. Archived from the original on 25 May 2022.

pennyblackstamp.co.uk

"Penny Black stamps price guide".

postalheritage.org.uk

"Queen Victoria Stamps". The British Postal Museum & Archive. Retrieved 25 February 2015.

warwickandwarwick.com

"The Ultimate Penny Black Stamp Guide". Warwick & Warwick. Archived from the original on 1 May 2020.

web.archive.org

"The Ultimate Penny Black Stamp Guide". Warwick & Warwick. Archived from the original on 1 May 2020.
Taylor, R. A. "Wyon City Medal – 1837". Images of the World. Archived from the original on 19 April 2012. Retrieved 30 April 2013.
British Library collections – Philatelic (Archived 23 May 2013 at the Wayback Machine). Accessed 30 April 2013.