cover 1906-13 ship mail postcards (6) from the Volga and Kama rivers, bearing various values (all are 3K. frankings) and cancelled "PAROKH/NIZHNI-RYBINSK 4" c.d.s., oval "ASTRAKHAN-NIZHNI/PAROKH" d.s., "NIZHNI-ASTRAKHAN/PAROKH" d.s. (3, serials a, b and 1), also "PERM-MIZHNI/PAROKH" d.s. Fine strikes