Need Help With The 1870 Thick Paper Match Stamps.

Can any philatelist provide me information regarding the "1870 Special Printing" on thick paper? I have several Match Stamps on this 1870 thick paper in my collection, the stamps that really stand out are the Cramer and Kemp and Zisermann, Gresheim & Co.with the former having a lighter shade of blue. The latter stamp has a PF certificate stating the stamp is a genuine RO186a, no mention of the obvious white thick paper was noted: shouldn't it have been? The printing of the thick paper was printed during the same time period as the experimental silk paper. When comparing the thick paper issue of the Cramer and Kemp to that of the certified experimental silk paper, the thicker paper showed a slightly lighter blue shade. Shouldn't this variety deserve a special listing in Scott's Specialized Catalogue since the scarcity of this variety is close to that of the experimental silk paper: according to Christopher West. The brightness of the scanners light shows the blue color bleeding through the stamp when there is no evidence under normal light. The last stamp is that of the the experimental silk paper Cramer and Kemp showing the much thinner paper.

There are first issues on very thick paper as well. The paper came from several different sources, and considerable variation is known. Since the catalog makes no mention of old paper varieties, the cert did not either. Scott treats revenues like a poor step-child anyway; almost anything not already listed for first issues or m&m's are likely to remain that way. Just another thing to make collecting interesting.

for what I know there were no m and m special printings made. all of the papers used were subject to variation of composition weight and sizing especially as the war went on. experiments with both inks and papers went on throughout the the life of their issue and settled down somewhat in the mid 1870's. meany tints and inks were fugitive, as well as the dyes used to color the papers. inks were mixed as needed and variations of color and shade are known for meany issues. plate wear and preparation also played a role.
these comments will also apply to the first issue revenues as well as the proprietary issues.