Concentrated posters & prints

Boy crouching shooting marbles concentration Anonymous

Concentric Circles in Color Field Anonymous

The Game of Backgammon Cornelis de Vos

Robert Fulton Thinking at Desk Anonymous

Children and a Broken Egg-Shell 1874 Anonymous

The Volunteer Review at Portsmouth: The Defending Force Concentrating at King William's Gate UK 1869 Anonymous

Contemplating soccer Anonymous

Focus on soccer Anonymous

Oxford Student Cramming for Exams Anonymous

Food Supply Anonymous

At a Book Maria Konstantinova Bashkirtseva

Concentration, 2018 Mark Adlington

The Listening Girl Jean-Baptiste Greuze

Juan Manuel Fangio Anonymous

Portrait of Dr Georg Wendemuth Alma Del Banco

Woman Filling Toothpaste Tubes Anonymous

Boy Working on Subtraction Problem Anonymous

Concentric Boxes Anonymous

Scene of Public Hanging Anonymous

First Grade Pam Ingalls

Scribe Working at His Desk Anonymous

Women Communards in Concentration Camp at Versailles, 1871 Anonymous

An Evening in the Library Anonymous

Hooke's microscope with condenser for concentrating light, 1665 Unknown

Fotogramm of segments and concentric circles of a sphere László Moholy-Nagy

Man hitting volleyball, side view Anonymous

1930s 1940s Busy Man In Shirt Sleeves Behind Office Desk Working At Typewriter Smoking Cigarette Anonymous

Well Caught, Woman Stretching Up Andrew Pitcairn-Knowles

A craftswoman at work ET Holding

Platinum still for concentrating sulphuric acid (Oil of Vitriol or H2S04), 1844 Unknown

Pensive Pirate on Chest Anonymous

A Sculptor in his Studio Edouard-Joseph Dantan

People Reading Together at Table Anonymous

Exercise of Intellect Jacques Wagrez

A Quiet Read William Kay Blacklock

Girl in Red, Knitting Pierre Auguste Renoir