Bumping this older thread.
Luckily, the search engine works very well on our website. I only have a stamp with a partial cancellation, and I thought I saw, "Out of O..." There is also the number 3 in the second cancellation to the left. So this is probably part of a boomerang cancel, and will be noted in my collection as such. Scott 49, ACSC 21(3)f.

