A very fine mint NH upper left corner block of the 6c black precancelled die 1a transportation stamp from the 1967-1973 Centennial Issue. Vertical wove paper with clearly visible horizontal ribbing, and smooth white PVA gum with an eggshell sheen. Under long-wave ultra violet light the paper gives a low fluorescent greyish white reaction, with a sparse concentration of low fluorescent fibres visible in the paper. The ink colour under UV is also black. There is no warning inscription in the left margin, which indicates that this block is likely from the right middle pane. Unitrade values four VF-75 NH singles at $10. However, a corner block should be worth at least $15, based on how Unitrade prices other corner blocks of this value. The block offered here grades VF-75 NH as follows:
Paper freshness: 5/5
Absence of visible paper flaws: 5/5
Note any vertical or horizontal line shown in the scan is the edge of the acetate strip that the stamp was resting inside on the stockcard.
Note: the above scan is a stock photo as are all my scans for material after 1952. The item(s) you will receive has (have) been carefully checked to adhere to the above grading standards, so while it (they) may not be exactly the same, it (they) will be of the same quality. Also, I do not provide back scans of NH stamps or blocks after 1952 unless they are required to illustrate some attribute of the paper or gum.