There was no getting away from it, when it came to making something out of nothing Archie was a dabster, and absolute dabster!
R. F. Delderfield, The Avenue Goes to War, 1958
He began by informing himself on all the technicalities of tea-rooms. ... He became a dabster at tucking paper napkins into his neat little waistcoat without tearing them.
Sinclair Lewis, The Innocents: A Story for Lovers, 1917
Dabster is a variation on dab (sometimes dab hand) meaning "a person skilled in something; an expert." It entered English in the early 1700s.