I have just discovered an article published in the Windsor Magazine Vol. XVII in 1903 about a mandolin workshop in the UK. The author describes the steps used for making a mandolin in the workshop of J. G. Winder. Winder had started the making of mandolins in the UK. He is also known as a builder of zither banjos.
Gallery – The Making of a Mandoline
(klick any image to start gallery!)
Video – JG Winder Open back 5-string Banjo
Zitherbanjo by J.G. Winder – Zither Banjo Website