After the liberation of Slovenia, the military authorities terminated civil postal service for 25 days (from May 12th to Jun 6th). No civilian shipment was permitted. Both outgoing and incoming mail was retained at post offices until Jun 6th.
Forerunner of the 1945 Maribor provisional issue, a letter sent from Sevnica ob Savi (7.VI.1945) to Belgrade. Cancelled with a provisional rubber date stamp and circular censors cancellation "Cenzura Celje". This is the earliest item sent after the reopening of postal service known to me.
