Final answer:
The official currencies mentioned in the question are German Mark, French Franc, Italian Lira, Dutch Guilder, Greek Drachma, Portuguese Escudo, Spanish Peseta, and Swedish Krona.
Step-by-step explanation:
The official currencies mentioned in the question are:
- German Mark
- French Franc
- Italian Lira
- Dutch Guilder
- Greek Drachma
- Portuguese Escudo
- Spanish Peseta
- Swedish Krona