Specimen stamp (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Specimen stamp" in English language version.

refsWebsite

Global rank English rank

1web.archive.org

1^st place

1^st place

1postalheritage.org.uk

low place

low place

1books.google.com

3^rd place

3^rd place

low place

low place

books.google.com

Philbrick, Fredrick A.; Westoby, William A. S. (1881). The postage and telegraph stamps of Great Britain. London: Sampson Low, Marston, Searle & Rivington. p. 46.

postalheritage.org.uk

"Philatelic glossary". British Postal Museum and Archive. Archived from the original on May 18, 2011. Retrieved June 18, 2010.

upss.org

"UPU Specimen Stationery". United Postal Stationery Society. Retrieved 9 June 2020.

web.archive.org

"Philatelic glossary". British Postal Museum and Archive. Archived from the original on May 18, 2011. Retrieved June 18, 2010.