Does anyone own or look after copies of either of these two 78s of Schubert

HMV 043201 (mat. Ac5113f): Elena Gerhardt, Du bist die Ruh (1911)
Odeon AA 57603 (mat. XXBO 6959): Alexander Kipnis, Gruppe aus dem Tartarus

And if so, might we be able to acquire flat transfers? It's for an
experiment in music perception, not for reissue (they're both on the EMI
Schubert Lieder on Record I set, but we need copies without equalisation or
noise reduction).

Many thanks for your help,

Professor Daniel Leech-Wilkinson
Associate Director
Centre for the History and Analysis of Recorded Music
Department of Music, King's College
Strand, London WC2R 2LS, UK