BuLa Story - 6th Swiss Scout National Camp, Domleschg, 1966
27th July – 3rd August 1966, approximatively 15 000 participants
The BuLa Express, a colourfully painted special train of the Rhaetian Railway, connected all sub-camps between Ems and Thusis several times a day as a special attraction. Each of the twelve sub-camp post offices used its own box postmark as an additional postmark with the permission of the post office.