AUSTRIA. WIEN. Interims-ScheineinerRentenschein von 10 Gulden. black. No 91166. Large format withfolds. IssuedbytheÖsterreische, mit der erstenÖsterreichischen Spar-Casse vereinigtenallgemeinenVersorgungsanstalt. In other words, this cert. was issued by the First Austrian Savings Bank, nowadays known as the 'Erste Group'. It serves today 15.7 million clients in over 2700 branches in 7 countries (Central and Eastern Europe). The investor paid 10 Guilders as first payment for a "Rentenschein", an interest-bearing receipt issued by the bank. Very early date.