As early as 1938, a local corporation with the name Nabludatelna Kula (Watch Tower) was formed and registered. It printed and distributed Bibles and Bible literature in Bulgaria.
aastal moodustati ja registreeriti Bulgaarias kohalik korporatsioon Nabludatelna Kula (Vahitorn), mis hakkas trükkima ja levitama Piibleid ning piiblilist kirjandust.