During the 20th century, one illustration was repeatedly – and wrongly – published as "Christopher Wren, design for the Theatre Royal Drury Lane, 1674". Since 1964, this presumption has been disputed by scholars. Careful inspection of the drawing at All Souls' College, Oxford Library shows that it has one pencil inscription: "Play house" , which may have been added by a librarian or by anyone else. No sign of a signature (by Wren or anyone else) or a date appears anywhere on the drawing. Robert D. Hume of Penn State University explained that use of the drawing "rests almost entirely on the "supposition" that the so-called "Wren section" at All Souls represents this theatre. It could just as easily be a discarded sketch unconnected to Drury Lane in any way."