Pembroke West is by far the rarest Bermuda Cancel. It was used at the , up the hill from Hamilton from early 1896 to 1904. Less than twenty canceled stamps (including 2 covers) are known. For more information, see Bermuda Post, March 1999 Issue 50, page 3.
This is the Pembroke West Son A cancel on a 1d Rose Red. It's dated April 27, 1901.
This lot is over $100 USD so I will ship it using Priority Mail in the United States and Registered Mail overseas to ensure it reaches you in a safe and timely manner.