{"product_id":"karl-otto-hartmann-german-scientist-heart-surgeon-hand-signed-letter","title":"Karl Otto Hartmann German Scientist Heart Surgeon Hand Signed Letter","description":"CHAU2154  This is a vintage official letter hand signed by Karl Otto Hartmann on his own headed paper which was part of a collection from a medical student in the 1970s and 80s writing to historic doctors and surgeons. It is approx 10\" x 8\" and bar folded once where posted in otherwise mint condition -Please see all my other scientist and surgeon autographs from this same collection.","brand":"Postcard Finder","offers":[{"title":"Default Title","offer_id":56222754079046,"sku":"170403","price":19.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0965\/3216\/9030\/files\/karl-otto-hartmann-german-scientist-heart-surgeon-hand-signed-letter-170403-p.jpg?v=1774002386","url":"https:\/\/postcardfinder.co.uk\/products\/karl-otto-hartmann-german-scientist-heart-surgeon-hand-signed-letter","provider":"Postcard Finder","version":"1.0","type":"link"}