2c Orange, Express, Complete Sheet of 210

Multiple blue HC's, "C. & R.I. R.R. Co.", Chicago & Rock Island R.R., deep dark color, there are several seps which have been reinforced with hinges, partial imprint at B., most of the perfs have been clipped around the edges, mounted with hinges on heavy cardboard, overall Fine centering, there is a Scott listed cracked plate variety in position 62, this variety is unpriced, the previous largest multiples known were two blocks of 50, this new discovery of a complete sheet is certainly a very interesting find, the catalog value is for blocks of four, (ENV 3,000-4,000)