Overview of the 1994 Slovenia ‘Europa – Great Discoveries’ Stamps

Slovenia issued two stamps on 22 April 1994, under the Europa CEPT (now Europa/PostEurop) theme “Great Discoveries”:

Denomination Subject Catalogue Numbers Designer & Details
70 Janez Puhar (first European to photograph using silver iodide on glass)—theme: persons/inventor Michel no. 80, Yvert no. 78, Scott no. 194, SG 231 Designed by Božo Koš; printed by Delo Tiskarna (Ljubljana); offset, comb perforation 13¾ : 14; no watermark; gum is water-activated
215 Jurij Bartolomej Vega (noted mathematician)—theme: persons/scientist Michel no. 81, Yvert no. 79, Scott no. 195, SG 232 Same production details as above

They were also issued as a se-tenant pair, with both stamps connected—this set is known in catalogs as Michel 80#81, Yvert 78#79, et cetera
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Context & Background

The EUROPA postage stamp series, initially under CEPT, features annually unified themes across participating countries—and for 1994, the theme was “Great Discoveries”
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Slovenia participated in 1994, aligning with that theme through these two biographical stamps honoring important Slovenian figures.