The Painting in the Crate. A Pounds & Sterling Short Story

This short story is the first in the "Pounds & Sterling" series.
A famous art history professor had been murdered in his studio. His doctoral student, art historian Samantha Pounds, is questioned by the police, then takes up her own investigations. Soon she finds a useful clue, and presents it to medical examiner Dr. Oliver Sterling. Together they find out the background of this strange murder case, in which international smugglers and foreign trading companies are involved.