Maureen,
the text is all in Russian.
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Voucher
Issued by Kovno governor 1905 May 17, #943 Russian meshchanin [urban dweller] of Kovno governorate Sima s.o. Isaak Vaynshtok with children: Abram 10 yo, Shifra 12 yo, and Mera 8 yo. Marked with the stamp to leave the country. [the area for return to the country on the right is not stamped]
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The stamp has a date of June 4 1905. The upper portion of the stamp says that it was stamped in Libava, which refers to the old name of Liepaya/Liepaja in Latvia, a major Russian Empire port at that time.
Mike Vayser