Thanks, Trish. Sorry for my delay (I'm distracted of late - trying to promote my novel online).

That enamel comes from my investigations of the behaviour of leaded and lead-free enamels when juxtaposed. There is an interesting phenomena: the lead-free

Thanks, Trish. Sorry for my delay (I'm distracted of late - trying to promote my novel online).

That enamel comes from my investigations of the behaviour of leaded and lead-free enamels when juxtaposed. There is an interesting phenomena: the lead-free enamel tends to retreat from the boundary with the leaded; that is what produced the halo around each moon.  

The barque is made from useful chips collected when I've smashed up failed enamels. You must wear goggles and gloves to do this salvage.