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<p>[QUOTE=&quot;Chinoiserie, post: 9472556, member: 79460&quot;]Well I couldnt resist. I have had the back off and had a closer look. The heavily shaded areas reflect light like you would expect pencil to do. Also I have measured the resistance of the shaded areas with a multimeter and got a reading of around 6k ohms to 10k ohms. This kind of tallies with one&nbsp; website that says 5k to 40k ohms for pencil on paper. Probably the real deal. Oh and on the back of the board it says &#039;Entwistle Thorpe Special Art&#039;. </p><p><br /></p><p>Excess dried out sellotape removed, glass cleaned up and back in one piece with no major catastrophes.[/QUOTE]</p><p><br /></p>

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