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C-fold return postcard mailer
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IV.—On the Coleoptera of St. Helena
Nelson
1968
A new species of Xenorhipis from Mexico with a key to the males (Buprestidae)
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2000-03-15
一种邮递请柬
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Briefumschlag mit durchscheinender Vosderseite
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Aedes (Ochlerotatus) nigrocanus Martini, its taxonomic status (Diptera: Culicidae)
Van Der Wulp
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Remarks on certain American Diptera in the Leyden Museum and description of nine new species
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1922-06-28
Umschlagloser, durch Klebstreifen verschliessbarer Faltbrief
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Lewis
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XXXIV.—On the Elateridæ of Japan
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1966-06-16
Briefkarte.
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1951-03-22
Fensterbriefumschlag mit reklameaufdruck.
DE1147C
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Neuerungen an Briefumschlägen
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(OSRAM )
CH594531A5
(en )
1978-01-13
Posting date indication system on envelope
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(OSRAM )
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1959-08-20
Fensterbriefumschlag.
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Brennan
1990
The Effect of Stamped Versus Franked Outgoing Envelopes on Mail Survey Response Rates
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(OSRAM )
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1978-08-17
Flachbeutel mit Tasche zum Mitsenden einer Zustellungsurkunde