Caption on back reads, 'The most popular size smokeless coal marketed today is egg size and White Oak is proud of its egg coal. Neither too large, nor too small; perfectly screened and without a single impurity are reasons for the popularity of this wonderful domestic fuel. Note the even size of this egg coal as it is passing over the loading boom into the railroad car. Treated for dust if desired.'
Subjects:
Coal Mines and Mining--Coal Transportation--Rail., Coal--Transportation., Coal.
