EXTREMELY FINE GEM. A BEAUTIFUL MINT NEVER-HINGED GUIDE LINE PAIR OF THE 2-CENT PERF 12 DOUBLE-LINE WATERMARKED HORIZONTAL COIL.
According to Johl (Vol. 1, p. 108), "When the stamps were current, coils were still in small favor with philatelists and as this sidewise type was more popular with users of affixing machines fewer were saved than the endwise coil."
With 2000 and 2006 P.F. certificates (XF 90). With 2017 P.S.E. certificate (XF 90; SMQ $4,000.00). This is an extremely challenging guide line pair to find in Mint N.H. centered condition. This 90 grade is the highest awarded by both P.S.E. and the P.F. and it is shared by only one other in the P.S.E. Population Report