{"product_id":"gb-1901-sgo17-official-r-control-block-p201005483","title":"GB 1901  SGO17 Official \"R\" Control block","description":"\u003cp\u003e1901 ¬Ωd Blue-green (I.R. Official). Very fine and fresh unused o.g. bottom right hand corner marginal control \"R\" block of six (Control example unmounted o.g.), Perf I, right side of the mill sheet. Scarce. Ex Michael Astley Collection. - P201005483\u003c\/p\u003e","brand":"Stanley Gibbons","offers":[{"title":"Default Title","offer_id":56193544421753,"sku":"P201005483","price":250.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0950\/9709\/4521\/files\/P201005483-1.jpg?v=1763042226","url":"https:\/\/shop.stanleygibbons.com\/products\/gb-1901-sgo17-official-r-control-block-p201005483","provider":"Stanley Gibbons","version":"1.0","type":"link"}