Robert Ingersoll sketch

Robert Schumann sketch

Robert Southey sketch

Robert Browning sketch

Robert Peel sketch

Robert Owen by Cranch 1845

Robert de Sorbon

Execution of Robert Emmet Dublin 1803

Robert Burns 2

Robert Browning

Robert Koch

Robert Frost

Robert Burns BW

Robert Fulton lineart

Robert Peary

Robert Moog

Robert Frost

Robert Walpole

Robert Louis Stevenson

Robert Koch in lab

Robert Schumann lineart

Robert E Lee profile

Robert Southley

Robert Southey poet