I have one other 10¢ imperforate dated 25 Sept 1867. These are found only as single stamps as no pairs are known to exist.
Semi-transparent paper - Perforated 13 1/2 horizontally dated 15 Oct 1867
20¢ Offset Printing
Wiping Marks
10¢ imperforate
30¢ & 50¢ imperforate pairs
40¢ imperforate pairs
Straight Edges
3 cent gash
Papers