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Plate from Pocock's 'Treatise on the aeropleustic Art, or Navigation in the Air', (London, 1827).","brand":"King \u0026 McGaw","offers":[{"title":"art print \/ extra small \/ none","offer_id":56503065837952,"sku":"10324579::UP_280_355_XMP","price":15.0,"currency_code":"GBP","in_stock":true},{"title":"art print \/ extra small \/ black","offer_id":56503065870720,"sku":"10324579::SFY_FA_FPMG_279_356_1_880229_108644_770002","price":60.0,"currency_code":"GBP","in_stock":true},{"title":"art print \/ extra small \/ white","offer_id":56503065903488,"sku":"10324579::SFY_FA_FPMG_279_356_1_880231_108644_770002","price":60.0,"currency_code":"GBP","in_stock":true},{"title":"art print \/ extra small \/ gold","offer_id":56503065969024,"sku":"10324579::SFY_FA_FPMG_279_356_1_880242_108644_770002","price":60.0,"currency_code":"GBP","in_stock":true},{"title":"art print \/ extra small \/ 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