Reserve Bank of Rhodesia, $1, $2, $5 and $10, 1979, all with the last possible prefix for their denomination, and with serial numbers ending in 974, about uncirculated to uncirculated, directly from the vaults of the Zimbabwe Reserve Bank and never released into circulation, thus very rare (4 notes)
TBB B107o, B108q, B109d, B110k, Pick 38, 39b, 40, 41 £340-£400