Posted by Dave Bull at 7:03 PM, October 27, 2013 [Permalink]
The next group of impressions is going to go a long way to making this thing come alive. It's going to be quite a lot of work, putting these on one-by-one (most of them actually taking a 'double impression' - a gentle base gradation followed by a more intense thin one along the top edge. Here's the first one: