This Jan van Os still oil life painting includes fruit, insects, flowers, and a rat. It it signed and dated 1769. The amount of detail from the insects to the water droplets and transparency of the fruit is stunning. This is one of my favorite painting at The Frick Pittsburgh museum. It is part of the permanent collection.
Details about this artist are found below:
"Those who worked in the first quarter of the 19th century had sold themselves completely to the neo-classic school of David. They strove to imitate the elevated style, pseudo-heroic, lacking spontaneity, and abhorring all subjectiveness, or the expression of the painter's own individuality. Their aim was by dead technical skill to make copies of human beings, even of nature as it reveals itself in leaves and twigs, but barren of life, dry and formal.
The van Os family was of this type. Jan van Os (1744-1808) painted principally flowers, as did his son G. J. J. van Os (1782-1861), adding thereto fruit and fowls. The elder son, P. G. van Os (1776-1839), devoted himself to landscape and cattle. Another relative, P. F. van Os, is only known as the teacher of Anton Mauve, who later was to revive and redeem Dutch landscape art."
Preyer, David Charles, 1861-, The art of The Netherland galleries, Publication date 1908, Publisher Boston : L.C. Page
"Jan van Os (1744 — 1808), more strictly conforming to tradition, not only copied the works of Van Huysum himself, but he carried imitation so far as to have four children and grand-children who devoted themselves to the painting of still life."
The Dutch school of painting by Havard, Henry, 1838-1921; Powell, George, Publication date 1885 Publisher London New York, Cassell & Co., Ltd.