20 Leva

Bulgaria's communist-era banknote series was still rolling off the same Leipzig presses after 1989 — this 1991 issue is a product of that institutional inertia, printed at the same East German facility that had supplied Bulgarian notes through the entire late socialist period. The Wertpapierdruckerei in Leipzig continued fulfilling existing contracts into the early post-unification years, which makes this note something of a Cold War afterthought.

It was superseded quickly. Hyperinflationary pressure through the early 1990s eroded the lev's purchasing power so rapidly that this denomination became functionally worthless within a few years of issue.