VERY FINE. A CHOICE AND DESIRABLE GROUP OF THESE SCARCE NATIONAL BANK NOTE COMPANY SAFETY NETWORK OVERPRINTS, REPRESENTING EACH OF THE THREE TYPES THAT ACTUALLY EXIST.
The safety network overprint essays listed in Scott as 79-E26 are discussed in two important articles by James Lee, Richard Drews and Jan Hofmeyr in the 2016 and 2017 Chronicle (no. 251, pp. 260-274 and no. 253, pp. 64-72). Both Abram Gibson and Emanuel Harmon received patents for re-use prevention ideas based on overprinting intaglio engraved stamps with surface printed networks of light wavy lines in various colors. Either the intaglio ink or network ink would be fugitive and wiped away if an attempt was made to re-use the stamp. The essays offered here conform to the Gibson patent and are so attributed in the second Chronicle article.
The wavy-line examples of the safety network overprints (79-E26d thru 79-E26g) are misdescribed in Scott. The second Chronicle article clears up the listing confusion and confirms that there are only three wave varieties, not four as listed in Scott, which also pictures two of the same types under different numbers. We will use the Lee/Drews/Hofmeyr types until the Scott listings are fixed
FINE-VERY FINE. A RARE ASSEMBLAGE OF 3-CENT NATIONAL BANK NOTE CO. TRIAL COLOR PROOFS WITH SAFETY NETWORK OVERPRINTS.
All of these are scarce as only one sheet of twelve of each was produced. A group with this depth is seldom seen. Scott Retail more than $10,000.00
ALL APPEAR FINE-VERY FINE. AN OUTSTANDING AND RARE GROUP OF THE PERFORATED THORP SAFETY PAPER PATENT ESSAY.
Printed by the National Bank Note Co.