cover 'Virginia City, Montano (error of spelling) Dec 13', clear Montana Territorial c.d.s. on very fresh pale buff cover to Canada, cover franked with 12c Black (69), natural s.e. at R. and single pulled perf., well-tied by matching target cancel, rather unusual usage of the 12c stamp (a 2c overpayment to Canada), very fine strike, with 1990 P.F. certificate photo