. . "2"^^ . . . "1" . "RIV/00216305:26310/13:PU108169" . "27" . . "26310" . . "3"^^ . "20"^^ . . "CZ - \u010Cesk\u00E1 republika" . . . "Contemporary forgeries of Prague grossi struck under Wenceslaus II."@en . . . "Zmrzl\u00FD, Martin" . "Folia Numismatica" . "Dobov\u00E9 pad\u011Blky pra\u017Esk\u00FDch gro\u0161\u016F V\u00E1clava II." . . . . "0862-1195" . . . "Dobov\u00E9 pad\u011Blky pra\u017Esk\u00FDch gro\u0161\u016F V\u00E1clava II."@cs . . "Dobov\u00E9 pad\u011Blky pra\u017Esk\u00FDch gro\u0161\u016F V\u00E1clava II." . . "Dobov\u00E9 pad\u011Blky pra\u017Esk\u00FDch gro\u0161\u016F V\u00E1clava II."@cs . . "[4FD25D3451C0]" . "numismatics, coin, Praque groschen, middle age, fake, contemporary copies, material composition, tin-plated lead, silver-plating, amalgamation, hydrostatic measurement of density, EDS (Energy Dispersive X-ray Spectrometry) analysis"@en . "70213" . "V p\u0159edkl\u00E1dan\u00E9m p\u0159\u00EDsp\u011Bvku se auto\u0159i zab\u00FDvaj\u00ED problematikou falz pra\u017Esk\u00FDch gro\u0161\u016F V\u00E1clava II. P\u0159edstavuj\u00ED celkem p\u011Bt minc\u00ED, je\u017E z hlediska \u00FArovn\u011B napodoben\u00ED origin\u00E1lu pokr\u00FDvaj\u00ED \u0161ir\u0161\u00ED spektrum dobov\u00FDch falz, od hrub\u00FDch pokus\u016F o kopie ofici\u00E1ln\u00EDch ra\u017Eeb po zna\u010Dn\u011B zda\u0159il\u00E1 falza, a zkoumaj\u00ED jejich materi\u00E1lov\u00E9 slo\u017Een\u00ED kombinac\u00ED dvou nedestruktivn\u00EDch metod, energiov\u011B disperzn\u00ED anal\u00FDzy (EDS) a hydrostatick\u00E9 zkou\u0161ky. A\u010Dkoliv lze ji\u017E na z\u00E1klad\u011B samotn\u00E9 fabriky minc\u00ED usuzovat, \u017Ee se nejedn\u00E1 o origin\u00E1ln\u00ED gro\u0161e, teprve v\u00FDsledky materi\u00E1lov\u00FDch zkou\u0161ek p\u0159in\u00E1\u0161ej\u00ED definitivn\u00ED potvrzen\u00ED a umo\u017E\u0148uj\u00ED \u010Dinit z\u00E1v\u011Bry o pravd\u011Bpodobn\u00E9m zp\u016Fsobu v\u00FDroby analyzovan\u00FDch minc\u00ED. V jednom p\u0159\u00EDpad\u011B se jedn\u00E1 o olov\u011Bn\u00FD st\u0159\u00ED\u017Eek s poc\u00EDnovan\u00FDm povrchem, v dal\u0161\u00EDm pak byla pou\u017Eit\u00FDm zp\u016Fsobem v\u00FDroby z\u0159ejm\u011B ra\u017Eba na st\u0159\u00ED\u017Eek ze slitiny st\u0159\u00EDbra a m\u011Bdi o n\u00EDzk\u00E9 jakosti, u kter\u00E9ho byl procesem b\u011Blen\u00ED st\u0159\u00ED\u017Eku v\u00FDrazn\u011B zv\u00FD\u0161en obsah st\u0159\u00EDbra"@cs . "Richtera, Luk\u00E1\u0161" . . "Contemporary forgeries of Prague grossi struck under Wenceslaus II."@en . . . . "In this study the authors focus on forgeries of Prague grossi struck under Wenceslaus II. They present a total of five coins which include both low quality fakes as well as almost perfect imitations of genuine Prague grossi and analyze their material composition using two non-destructive analytical techniques, the Energy-dispersive X-ray spectroscopy and the hydrostatic assessment of density. The results of the measurements confirm the assumption that all five are counterfeit coins and further provide information with respect to the production methods of the fakes. In case of one of the coins the material composition analysis indicates a tin-plated lead and in another case the most likely production method included the blanching of a coin flan made from a silver-copper alloy which had the effect of significantly increasing the silver content in the surface layer of the coin. The most frequent production method confirmed in three of the analyzed coins was the silver-plating of a copper core by amalgama"@en . "V p\u0159edkl\u00E1dan\u00E9m p\u0159\u00EDsp\u011Bvku se auto\u0159i zab\u00FDvaj\u00ED problematikou falz pra\u017Esk\u00FDch gro\u0161\u016F V\u00E1clava II. P\u0159edstavuj\u00ED celkem p\u011Bt minc\u00ED, je\u017E z hlediska \u00FArovn\u011B napodoben\u00ED origin\u00E1lu pokr\u00FDvaj\u00ED \u0161ir\u0161\u00ED spektrum dobov\u00FDch falz, od hrub\u00FDch pokus\u016F o kopie ofici\u00E1ln\u00EDch ra\u017Eeb po zna\u010Dn\u011B zda\u0159il\u00E1 falza, a zkoumaj\u00ED jejich materi\u00E1lov\u00E9 slo\u017Een\u00ED kombinac\u00ED dvou nedestruktivn\u00EDch metod, energiov\u011B disperzn\u00ED anal\u00FDzy (EDS) a hydrostatick\u00E9 zkou\u0161ky. A\u010Dkoliv lze ji\u017E na z\u00E1klad\u011B samotn\u00E9 fabriky minc\u00ED usuzovat, \u017Ee se nejedn\u00E1 o origin\u00E1ln\u00ED gro\u0161e, teprve v\u00FDsledky materi\u00E1lov\u00FDch zkou\u0161ek p\u0159in\u00E1\u0161ej\u00ED definitivn\u00ED potvrzen\u00ED a umo\u017E\u0148uj\u00ED \u010Dinit z\u00E1v\u011Bry o pravd\u011Bpodobn\u00E9m zp\u016Fsobu v\u00FDroby analyzovan\u00FDch minc\u00ED. V jednom p\u0159\u00EDpad\u011B se jedn\u00E1 o olov\u011Bn\u00FD st\u0159\u00ED\u017Eek s poc\u00EDnovan\u00FDm povrchem, v dal\u0161\u00EDm pak byla pou\u017Eit\u00FDm zp\u016Fsobem v\u00FDroby z\u0159ejm\u011B ra\u017Eba na st\u0159\u00ED\u017Eek ze slitiny st\u0159\u00EDbra a m\u011Bdi o n\u00EDzk\u00E9 jakosti, u kter\u00E9ho byl procesem b\u011Blen\u00ED st\u0159\u00ED\u017Eku v\u00FDrazn\u011B zv\u00FD\u0161en obsah st\u0159\u00EDbra" . . "RIV/00216305:26310/13:PU108169!RIV14-MSM-26310___" . "I" . .