The collection is labelled Handschin Finland. The collection is entered in the FE list under no. 44, but is no longer recorded in the EB Schneider. There are no written references to the contents of the roller recordings. There is correspondence, but it does not refer to this roller collection. There is only one comment about the roller recordings (archive to H.17.4.41). So far, no reference to these roll recordings has been found in the existing literature. After listening to the copies, it was established that the recordings are Russian Orthodox church music (S.Ziegler May 2000).