The letter below from Tallinn 10 V 39 to Tallinn (arrival 11 V 39) has one special feature: that is the registration fee for official packet (erikorras tähitatud, virkalähetyksen kirjaaminen). It has been valid only during 1.4.1936 - 5.12.1940 and the fee has been mentioned to be “recommendation”. This domestic registration fee was 5 senti and by that it was only half of the regular domestic registration fee. The domestic letter (< 20g.) during 1.1.1928 - 29.2.1940 was 10 senti.
Tallinna Ringkonnakohtule = Tallinnan Käräjäoikeus (Tallinn District Court, Criminal division).