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Evidence for a die-alignment mechanism?
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<p>[QUOTE="maridvnvm, post: 7963152, member: 31620"]I can't answer any if the questions asked but can throw a couple of examples into the mix.</p><p><br /></p><p>The first:-</p><p><br /></p><p>Silver Tetradrachm</p><p>Obv:– Laureate head of Apollo right with short hair right.</p><p>Rev:– PATRAOU, armed warrior on horse prancing right, spearing fallen enemy who holds spear and shield, EM monogram in left field</p><p>Minted in Kindom of Paeonia, Patraos from . B.C. 335 - 315.</p><p>Ref:– SNG Oxford 3359 (different dies)</p><p>12.646g, 27.5mm, 90 degrees</p><p><br /></p><p><img src="https://www.forumancientcoins.com/gallery/albums/userpics/10618/Paeonia_1a_img~0.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p><br /></p><p>The obverse here is quite a long way off centre though the reverse is quite well centred. You can see some evidence of the concave nature of the reverse. There is some form of mark on the flan ay 06:00 on the obverse that is aligned to the portrait orientation.</p><p><br /></p><p>Was the blank inserted off-centre, struck centrally with the hammer part, creating a decent reverse strike, whilst being such a long way off centre that some facet of die alignment is now evident in the resulting coin.</p><p><br /></p><p>Another coin that I trot out occasionally is the result of an off-centre and uneven strike. I suspect that the blank was inserted and was off centre. The resulting strikes align very well but has resulted in an uneven and off-centred strike.</p><p><br /></p><p>Obv:– Head of Juno Sospita right, wearing goat skin tied under chin. Behind head, Compass</p><p>Rev:– Gryphon running right; in ex., L. PAPI.; in field, Drill</p><p>Minted in Rome from . B.C. 79.</p><p>Reference(s) – RSC Papia 1. RRC 384/1. RCTV 311.</p><p>Symbol variety – RRC 204. Babelon -. BMCRR -</p><p>3.85g. 20.41 mm. 180 degrees</p><p><br /></p><p><img src="https://www.forumancientcoins.com/gallery/albums/userpics/10618/Papia_1c_img~0.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p><img src="https://www.forumancientcoins.com/gallery/albums/userpics/10618/Papia_1c_edge.JPG" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="maridvnvm, post: 7963152, member: 31620"]I can't answer any if the questions asked but can throw a couple of examples into the mix. The first:- Silver Tetradrachm Obv:– Laureate head of Apollo right with short hair right. Rev:– PATRAOU, armed warrior on horse prancing right, spearing fallen enemy who holds spear and shield, EM monogram in left field Minted in Kindom of Paeonia, Patraos from . B.C. 335 - 315. Ref:– SNG Oxford 3359 (different dies) 12.646g, 27.5mm, 90 degrees [IMG]https://www.forumancientcoins.com/gallery/albums/userpics/10618/Paeonia_1a_img~0.jpg[/IMG] The obverse here is quite a long way off centre though the reverse is quite well centred. You can see some evidence of the concave nature of the reverse. There is some form of mark on the flan ay 06:00 on the obverse that is aligned to the portrait orientation. Was the blank inserted off-centre, struck centrally with the hammer part, creating a decent reverse strike, whilst being such a long way off centre that some facet of die alignment is now evident in the resulting coin. Another coin that I trot out occasionally is the result of an off-centre and uneven strike. I suspect that the blank was inserted and was off centre. The resulting strikes align very well but has resulted in an uneven and off-centred strike. Obv:– Head of Juno Sospita right, wearing goat skin tied under chin. Behind head, Compass Rev:– Gryphon running right; in ex., L. PAPI.; in field, Drill Minted in Rome from . B.C. 79. Reference(s) – RSC Papia 1. RRC 384/1. RCTV 311. Symbol variety – RRC 204. Babelon -. BMCRR - 3.85g. 20.41 mm. 180 degrees [IMG]https://www.forumancientcoins.com/gallery/albums/userpics/10618/Papia_1c_img~0.jpg[/IMG] [IMG]https://www.forumancientcoins.com/gallery/albums/userpics/10618/Papia_1c_edge.JPG[/IMG][/QUOTE]
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