Title:
India / China: The 'Drying Room' in a Patna opium factory with hundreds of opium balls prepared for use in the China trade. Lithograph, W. S. Sherwell, c. 1850.
Caption:
After balling, the balls are taking to the Drying Room, where each is placed in an individual earthenware cup. The image shows men examining the balls, and puncturing with a sharp style those in which gas, arising from fermentation, may be forming'.