I've had this rather shop worn pair for many years now. As you can see it's not the best cancel, but the reason I obtained it was because the other stamp was not cancelled at all. Just an interesting stamp pair, because it's shop worn not worth very much, but nice to view. I keep it in my Pacific Mail Steam Ship stock book, but not many stamps in there, wish there were a lot more, and none of them on document/instrument!
The first image is as the stamp in question appears!

The second image is a right and proper enhancement to show the orientation of the cancel, and to enhance the faded letters. The blue cast is from the enhancement process and other stuff which I simply do not understand!

Cheers
David (Stampmaster)