Jamaica 1 shilling inverted-frame stamp error (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Jamaica 1 shilling inverted-frame stamp error" in English language version.

refsWebsite

Global rank English rank

2empirephilatelists.com

low place

low place

1web.archive.org

1^st place

1^st place

low place

low place

empirephilatelists.com

Empire Philatelists, Stuart Chandler. "Jamaica 1920 1s Orange-Yellow & Red-Orange SG85a Frame Inverted Neatly Cancelled". www.empirephilatelists.com. Retrieved 2018-01-20.
Empire Philatelists, Stuart Chandler. "Jamaica 1920 1s Orange-Yellow & Red-Orange SG85a Frame Inverted Neatly Cancelled". www.empirephilatelists.com. Retrieved 2018-01-20.

gov.jm

jamaicapost.gov.jm

Tortello, Dr. Rebecca. "The Jamaican Postal Service: History of Stamp". Postal Corporation of Jamaica Ltd. Archived from the original on 2010-03-28. Retrieved 2009-09-28.

web.archive.org

Tortello, Dr. Rebecca. "The Jamaican Postal Service: History of Stamp". Postal Corporation of Jamaica Ltd. Archived from the original on 2010-03-28. Retrieved 2009-09-28.