Sweden. Military cover, Swedish volunteers in Enstonia 1919. Rare printed envelope 'SVENSKA KÅREN ESTLAND ROOTSI KORPUS EESTIMAAL', sent from TALLINN EESTI 7.5.19 via HELSINGFORS HELSINKI 11.V.19 to Gothenburg. Franked and with violet cachet S.K. Great showpiece. Ex. Zetterberg.
