Coppersmith

Lead and iron must feed the coppersmith.

Tom is a coppersmith.

Eastleigh Locomotive Works: Layout and functions of shops [...] Coppersmiths: Preparation of boiler tubes and copper pipework.

More noises came from a dusty tree, where brown birds creaked and floundered about looking for insects; another bird, the invisible coppersmith, had started his ‘ponk ponk’.