“The Fourth Dimensional Demonstrator,” Murray Leinster, 1935 –Pete Davidson, his avaricious fiance, Miss Daisy Manners of the Green Paradise floor show, a kangaroo named Arthur, and Thomas, the servant of Pete’s recently deceased uncle (an expert on the fourth dimension) are thrust into farce when a fourth-dimensional transporter is discovered in Pete’s uncle’s laboratory. The device allows them to replicate objects by repeatedly plucking them from the timestream. They overlook the fact that all bills will have the same serial number, and the police arrive to bust the counterfeit ring. Daisy and Arthur, the kangaroo, are accidentally replicated, and a bedlam ensues.
Comments: Read in The Future Makers. Another early story concerned with replication.
Author: Wikipedia: “Murray Leinster (June 16, 1896 – June 8, 1975) was a nom de plume of William Fitzgerald Jenkins, an award-winning American writer of science fiction and alternate history. He wrote and published over 1,500 short stories and articles, 14 movie scripts, and hundreds of radio scripts and television plays.”