Era: 1950s
ABV: 34%
Volume: 57cl
The "Aristocrat of Liqueurs" as self-proclaimed by Wolfschmidt, which hails from (like its Bols counterpart) Amsterdam, Holland.
Nowadays presented in a clear bottle, perhaps the transparency helps remove the mystery and uncertainty as the liqueur itself is crystal clear as well, but you can never be sure with green glass.
Proost!