{"id":51037,"date":"2026-05-20T09:39:40","date_gmt":"2026-05-20T08:39:40","guid":{"rendered":"https:\/\/www.jblundells.co.uk\/shop\/?post_type=product&#038;p=51037"},"modified":"2026-05-20T14:19:42","modified_gmt":"2026-05-20T13:19:42","slug":"hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series","status":"publish","type":"product","link":"https:\/\/www.jblundells.co.uk\/shop\/product\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\/","title":{"rendered":"Hattons of London 2018 Defence of our skies colour sovereign gold series"},"content":{"rendered":"<p>The collection includes a Quarter Sovereign, Half Sovereign, and Full Sovereign, each featuring the portrait of Queen Elizabeth II on the obverse. The reverses showcase iconic British aircraft set against a full-colour Union Flag backdrop: the Hawker Hurricane Mk I of 257 Squadron on the Quarter Sovereign, the Sopwith F.1 Camel of 208 Squadron on the Half Sovereign, and the Supermarine Spitfire Mk I of 92 Squadron on the Full Sovereign.<br \/>\nSignificantly, each coin represents a world first within the Sovereign series, as the first gold Quarter Sovereign, Half Sovereign, and Full Sovereign ever issued to feature a coloured design. Combining military history, aviation heritage, and innovative craftsmanship, this collection stands as a unique tribute to a century of British air defence.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A brief insight into your collectible<\/p>\n<p>Released in 2018 to commemorate 100 years of the defence of Britain\u2019s skies, this remarkable \u201cDefence of Our Skies\u201d Colour Sovereign collection pays tribute to the formation<br \/>\nof the Royal Air Force in 1918 and its enduring role in protecting the nation. Independently designed by Hattons of London, the set combines historic aviation themes with innovative modern minting techniques.<\/p>\n<p data-start=\"0\" data-end=\"42\"><strong data-start=\"0\" data-end=\"40\">Specification<br data-start=\"65\" data-end=\"68\" \/><\/strong><\/p>\n<p data-start=\"15\" data-end=\"95\"><strong>Quarter Sovereign<\/strong><br data-start=\"32\" data-end=\"35\" \/>Year: 2018<br data-start=\"45\" data-end=\"48\" \/>Alloy: 91.6 Au<br data-start=\"62\" data-end=\"65\" \/>Weight: 1.9<br data-start=\"76\" data-end=\"79\" \/>Diameter: 14.0<\/p>\n<p data-start=\"97\" data-end=\"174\"><strong>Half Sovereign<\/strong><br data-start=\"111\" data-end=\"114\" \/>Year: 2018<br data-start=\"124\" data-end=\"127\" \/>Alloy: 91.6 Au<br data-start=\"141\" data-end=\"144\" \/>Weight: 3.9<br data-start=\"155\" data-end=\"158\" \/>Diameter: 19.3<\/p>\n<p data-start=\"176\" data-end=\"246\" data-is-last-node=\"\" data-is-only-node=\"\"><strong>Sovereign<\/strong><br data-start=\"185\" data-end=\"188\" \/>Year: 2018<br data-start=\"198\" data-end=\"201\" \/>Alloy: 91.6 Au<br data-start=\"215\" data-end=\"218\" \/>Weight: 7.9<br data-start=\"229\" data-end=\"232\" \/>Diameter: 22.0<\/p>\n","protected":false},"featured_media":51040,"template":"","meta":{"editor_plus_copied_stylings":"{}","_themeisle_gutenberg_block_has_review":false,"jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"product_brand":[],"product_cat":[305],"product_tag":[309],"class_list":{"0":"post-51037","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-gold-coin-box-sets","7":"product_tag-box","9":"first","10":"instock","11":"purchasable","12":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hattons of London 2018 Defence of our skies colour sovereign gold series - JBlundell &amp; Sons<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.jblundells.co.uk\/shop\/product\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hattons of London 2018 Defence of our skies colour sovereign gold series - JBlundell &amp; Sons\" \/>\n<meta property=\"og:description\" content=\"A brief insight into your collectible  Released in 2018 to commemorate 100 years of the defence of Britain\u2019s skies, this remarkable \u201cDefence of Our Skies\u201d Colour Sovereign collection pays tribute to the formation of the Royal Air Force in 1918 and its enduring role in protecting the nation. Independently designed by Hattons of London, the set combines historic aviation themes with innovative modern minting techniques. Specification Quarter SovereignYear: 2018Alloy: 91.6 AuWeight: 1.9Diameter: 14.0 Half SovereignYear: 2018Alloy: 91.6 AuWeight: 3.9Diameter: 19.3 SovereignYear: 2018Alloy: 91.6 AuWeight: 7.9Diameter: 22.0\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.jblundells.co.uk\/shop\/product\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\/\" \/>\n<meta property=\"og:site_name\" content=\"JBlundell &amp; Sons\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/J-Blundell-and-Sons-104226871028201\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-20T13:19:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.jblundells.co.uk\/shop\/wp-content\/uploads\/2026\/05\/Screenshot-2026-05-20-121734-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"545\" \/>\n\t<meta property=\"og:image:height\" content=\"706\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.jblundells.co.uk\\\/shop\\\/product\\\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\\\/\",\"url\":\"https:\\\/\\\/www.jblundells.co.uk\\\/shop\\\/product\\\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\\\/\",\"name\":\"Hattons of London 2018 Defence of our skies colour sovereign gold series - JBlundell &amp; 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Independently designed by Hattons of London, the set combines historic aviation themes with innovative modern minting techniques. Specification Quarter SovereignYear: 2018Alloy: 91.6 AuWeight: 1.9Diameter: 14.0 Half SovereignYear: 2018Alloy: 91.6 AuWeight: 3.9Diameter: 19.3 SovereignYear: 2018Alloy: 91.6 AuWeight: 7.9Diameter: 22.0","og_url":"https:\/\/www.jblundells.co.uk\/shop\/product\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\/","og_site_name":"JBlundell &amp; Sons","article_publisher":"https:\/\/www.facebook.com\/J-Blundell-and-Sons-104226871028201\/","article_modified_time":"2026-05-20T13:19:42+00:00","og_image":[{"width":545,"height":706,"url":"https:\/\/www.jblundells.co.uk\/shop\/wp-content\/uploads\/2026\/05\/Screenshot-2026-05-20-121734-1.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.jblundells.co.uk\/shop\/product\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\/","url":"https:\/\/www.jblundells.co.uk\/shop\/product\/hattons-of-london-2018-defence-of-our-skies-colour-sovereign-gold-series\/","name":"Hattons of London 2018 Defence of our skies colour sovereign gold series - JBlundell &amp; 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