Stirling had only one Roller cancellation albeit it appeared to have been recut/repaired twice
Proof entry circa July 1857
Proof entry circa January 1864
Proof entry circa August 1867
Characteristics: Continuing lines surrounding the 308 of Stirling
Proofed: Initially circa July 1857 and subsequently circa January 1864 and circa August 1867
EKD: 30th August 1858
LKD: 1st May 1865
Scarcity Rating: H (Very Few Recorded). I have seen only three dated examples and three undated examples