{"product_id":"gb-1873-sg150-cover-p10100066x","title":"GB 1873  SG150 Cover","description":"\u003cp\u003e1873 1s Green Pl.8. Very fine example lettered BA neatly tied to a clean cover to Madrid by a London city “89“ duplex for AU.20.1873 with a similarly dated Merchants cachet at lower left. Backstamped with a Madrid receiving cds for AU.26.1873.  Although this plate was put to press in June the first official day of issue was SP.1.1873 a few examples have been found used prior to this date, pre-release covers such as this are of the highest rarity. - P10100066X\u003c\/p\u003e","brand":"Stanley Gibbons","offers":[{"title":"Default Title","offer_id":56194070282617,"sku":"P10100066X","price":3500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/9709\/4521\/files\/P10100066X-1.jpg?v=1763044699","url":"https:\/\/shop.stanleygibbons.com\/products\/gb-1873-sg150-cover-p10100066x","provider":"Stanley Gibbons","version":"1.0","type":"link"}