Information On Mexican Numeral Cancel

Hello. I found this cancel on one of my Mexican Numeral pairs. Does anyone have any information on this cancel?

Thank you!

Nice pick up.
Not seen before, perhaps a revenue cancellation?
Tip: Always nice if one can include the year of the stamp, when posting.
Helps us looking it up.

1886 Cancellations (Broadly)
CDS (circular date stamp)
Square boxed
Rounded corners square boxed
Oval
and not too often, lined bars and cut cork.
Yours appears too elegant for a postal cancellation.

Mexico, Postmarks of Mexico 1874-1900 by Karl H. Schimmer 1977, 472 pages, cloth, sold


http://pbbooks.com/foreignc.htm