- C. L. B. (1)
- Caimo & C. (2)
- Capital Pub. Inc. (2)
- Carey Print (4)
- Carey Print Lith (3)
- Carey Print Lith Inc. (1)
- Carey Print Lith. (4)
- Carey Show Print (2)
- Catala Freres (8)
- Central London Recruiting Depot ; Leeds : Printed by Beck & Inchbold, Ltd. (1)
- Century Co., U. S. Navy Publicity Bureau (1)
- Chaix (1)
- Charles & Read Ltd. (2)
- Charles Jones & Co., Limited (3)
- Charles Jones & Co., Ltd. (2)
- Charles Skipper & East LTD. (1)
- Charles Skipper & East Ltd. (1)
- Chas. Jones & Co. (1)
- Chelsea Litho. Co., Inc. (1)
- Chorley &$38; Pickersgill Ltd. (1)
