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1. Just poured first the half of an OiB and opened the sand mold whilst it’s still smoking. The lines and knob you see are the channels the liquid bronze pours into to get to the actual center of the mold where the sculpture is formed.
3. One mold has been removed to show the actual sculpture inside. Now all the gates and channels on the outside have to be removed, the whole things cleaned up (yes, there is bronze beneath that charred surface) and both halves put together, finished and patinaed.