Stamps, 100 Years Finnish Chemical Society issue

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Finland

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1991, Nov 1 100 Years Finnish Chemical Society issue unwmk p. 14
Colnect-160-119-Camphor-molecule-erlenmeyer-flask.jpgColnect-160-120-Camphor-molecule-erlenmeyer-flask.jpg
- 2.10mk multi Camphor molecule & Erlenmeyer flask
- 2.10mk multi Camphor molecule & Erlenmeyer flask

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