{"product_id":"150756","title":"150756 1911 FIRST U.K. AERIAL POST UNUSED PROOF OF LONDON ENVELOPE IN PALE YELLOW-GREEN.","description":"\u003cp\u003e1911 FIRST U.K. AERIAL POST UNUSED PROOF OF LONDON ENVELOPE IN PALE YELLOW-GREEN. Fine to very fine unused proof of London envelope in pale yellow-green with insert, vertical crease, slight soiling, \u003cspan\u003eunaddressed with 1d Downey at upper right. This event was so popular that the official stationery sold out immediately and the organisers permitted the use of such items as colour trials and proofs. RARE. \u003c\/span\u003e(Ref 150756).\u003c\/p\u003e","brand":"Bill Barrell Ltd","offers":[{"title":"Default Title","offer_id":57488468836732,"sku":null,"price":225.0,"currency_code":"GBP","in_stock":true}],"url":"https:\/\/www.barrell.co.uk\/products\/150756","provider":"Bill Barrell Ltd","version":"1.0","type":"link"}