524236
9780764318276
Over 700 color photos of marbles produced from the early 1900s through the early 1930s by M. F. Christensen & Son Company and the Christensen Agate Company. Includes bricks, cobras, guineas, opaques, slags, single pontil slags, swirls, and hand-gathered swirls. Values for the marbles displayed are found in the captions.Block, Robert S. is the author of 'Collecting Early Machine-Made Marbles The M. F. Christensen & Son Company and Christensen Agate Company' with ISBN 9780764318276 and ISBN 0764318276.
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