0.10 Leva Foreign Exchange Certificate

Balkantourist was the Bulgarian state tourism monopoly, and these foreign exchange certificates — known locally as "coupons" — formed a parallel currency system designed to capture hard currency from Western visitors while preventing its circulation in the domestic economy. Tourists exchanged foreign cash for these at a mandatory official rate, then used them at Balkantourist hotels, Corecom hard-currency shops, and other state-designated outlets inaccessible to ordinary Bulgarians.

The 0.10 denomination is the smallest in the 1975 series, issued to handle fractional transactions within the coupon system. Heavily used in practice, low-denomination examples in clean condition are harder to find than the higher values.