(c/o Heanton Press Ltd, Tudor Works, Cardiff CP1 8UR), Avalon Books
Cardiff

(c/o J. T. Aungiers, 5 Cherry Walk, Cheadle Hulme, Cheadle, Cheshire SK8 7DY), Methodist Philatelic Society
Cheadle

(c/o Joan Lowe, Midland Bank House, Market Rasen, Lincs), Workers' Educational Association (Market Rasen Branch)
Market Rasen

C. Ozturk
[Perth, W.A

Cohasset Associates, Inc
Chicago

Cohen & Cohen Publishers

Cohen & West
London

Cohen and West
London

Cohen Communications and More

Cohen Publishing Company

Cohoctah Press
Howell, MI

Cohuna Historical Society
Cohuna [Vic.]

Cội Nguò̂n
[San Jose, CA]

COIC
Sheffield

Coimbra Editora

Coin & Currency Inst

Coin & Currency Institute
Clifton, N.J

Coin & Currency Institute, Inc

Coin and Currency Institute
Fort Lee, N.J

Coin Slot Books