{"product_id":"tanganyika-mafia-island-sg-m12-unmounted-mint-1915-6c-on-4h-green-overprint-in-black-p267000986","title":"Tanganyika Mafia Island SG M12 Unmounted Mint 1915 6c on 4h green overprint in black","description":"\u003cp\u003eMafia Island. 1915 (May) 6c on 4h green, German East Africa 'Yacht' stamp opt with type M2 'G.R. \/ POST \/ 6 CENTS \/ MAFIA' h\/s in black, unmounted o.g. A couple of trivial tone specks on reverse still fine and fresh. Gibbs estimates that no more than 25 exist. BPA cert (2025) and Holcombe opinion (1991). (cat £3000) - P267000986\u003c\/p\u003e","brand":"Stanley Gibbons","offers":[{"title":"Default Title","offer_id":64834726560121,"sku":"P267000986","price":2500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/9709\/4521\/files\/P267000986.jpg?v=1791558721","url":"https:\/\/shop.stanleygibbons.com\/products\/tanganyika-mafia-island-sg-m12-unmounted-mint-1915-6c-on-4h-green-overprint-in-black-p267000986","provider":"Stanley Gibbons","version":"1.0","type":"link"}