Prince Edward's Gate (English Wikipedia)

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Roach, John (13 September 2006). "Neandertals' Last Stand Was in Gibraltar, Study Suggests". National Geographic News. National Geographic Society. Archived from the original on 14 November 2006. Retrieved 28 September 2012.

"Stamp Detail - 1971". poppe-stamps.com. Poppe - Stamps. Retrieved 29 September 2012.
"Stamp Detail - 1993". poppe-stamps.com. Poppe-Stamps. Retrieved 29 September 2012.

Roach, John (13 September 2006). "Neandertals' Last Stand Was in Gibraltar, Study Suggests". National Geographic News. National Geographic Society. Archived from the original on 14 November 2006. Retrieved 28 September 2012.
"Gibraltar Heritage Trust Act 1989" (PDF). gibraltarlaw.gov.gi. Government of Gibraltar. Archived from the original (PDF) on 27 August 2012. Retrieved 29 September 2012.
"Historical Gibraltar Attractions - Charles V Wall". gibraltarinformation.com. Archived from the original on 29 August 2012. Retrieved 29 September 2012.
"Gates & Fortifications". aboutourrock.com. About Our Rock. Archived from the original on 1 November 2012. Retrieved 28 September 2012.
"Historical Gibraltar Attractions (continued)". gibraltarinformation.com. Archived from the original on 26 February 2012. Retrieved 28 September 2012.
"Flat Bastion, Flat Bastion Magazine". discovergibraltar.com. DiscoverGibraltar.com (Click Fortifications, City Walls and Fortifications, Section 3, L Flat Bastion). Archived from the original on 5 September 2013. Retrieved 28 September 2012.
"Trafalgar Cemetery". Gibraltar Heritage Trust. Archived from the original on 6 February 2007. Retrieved 29 September 2012.{{cite web}}: CS1 maint: unfit URL (link)
"Gibraltar 1993 - SG706, £1 Prince Edward's Gate, VFU". Woolieback Collectables. Archived from the original on 4 March 2016. Retrieved 28 September 2012.

Rigg, James McMullen (1892). "Kent and Strathern, Edward Augustus" . In Lee, Sidney (ed.). Dictionary of National Biography. Vol. 31. London: Smith, Elder & Co. pp. 19–20.

"Gibraltar 1993 - SG706, £1 Prince Edward's Gate, VFU". Woolieback Collectables. Archived from the original on 4 March 2016. Retrieved 28 September 2012.