Royal Philatelic Society London

Dresden's Pig”. IWM Collection Search. 12 November 2012閲覧。 'Pig in the Post' - A presentation to the Royal Philatelic Society London by Colin Mount FBSAP

Stamps 1847–59. London: Stanley Gibbons. ISBN 0-85259-251-5  ^ “Deaths”. The London Philatelist (London: Royal Philatelic Society London) 121 (1393): 73

Bird Observation & Conservation Australia. 2010年5月7日閲覧。 ^ Australia Post Philatelic Group (October-December 1999). “Note:Birds error”. Stamp Bulletin (252):

(2010) Freemasons and the Royal Society London ^ a b Library and Museum of Freemasonry (2010) Freemasonry and the Royal Society London ^ “Atlas Pythagoras Lodge

uk ^ https://www.acss.org.uk/ ^ http://www.bereavementpractitioners.org/Society_of_Bereavement_Practitioners/Welcome.html ^ http://www.soe.org