This uncirculated 20-heller banknote is an emergency banknote issued for Vienna. Its obverse side is purple and shows the denomination. Its reverse side is white and brown and shows the terms and conditions for use of the banknote. It does not have a security thread or a watermark. However, its dimensions are 66 mm x 48 mm. The details of this banknote have been verified and TAP Authenticated by Banknote World experts.