1968 Original Soviet Vintage Large Biology School Chart "CHROMOSOMAL MECHANISM OF SEX DETERMINATION" Paper On Linen, USSR Mid Century Educational Poster

Original mid-century biology school chart “CHROMOSOMAL MECHANISM OF SEX DETERMINATION" printed in Leningrad, USSR, in 1968. Paper on linen. Teaching aid from the collection of a retired teacher used in classrooms in Ukraine. 
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SIZE:
67 x 96cm

CONDITION:
Good vintage, natural patina. Please enlarge photos for details. Light water marks and a bit of old tape on the top edge. Labelled in russian cursive at the back by the teacher.

Ships rolled up, unframed.

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