The Unknown Quantity
The Unknown Quantity was a 1919 American silent directed by Thomas R. Mills produced and distributed by the Vitagraph Company of America. It is based on the 1910 short story of the same name by O. Henry.
The Unknown Quantity was a 1919 American silent directed by Thomas R. Mills produced and distributed by the Vitagraph Company of America. It is based on the 1910 short story of the same name by O. Henry.