R192a $5 Green Documentary
Dave Thompson sent in this scan of an R192, MNH, with no surcharged numeral. The Scott catalog lists the stamp with a separate value for the missing surchage. It does not mention, though, the missing varnish, which the stamp does not appear to have as well.
The granularity of Scott listings among the revenues and the 1898s has always left something to be desired. In this case, the catalog does not distinguish by value or by numbering the presence or lack of varnish.