Transcription:
FORSSELIUS, E[rik] J[ohan] E[mil]
Se:
Zetterquist,A[lvar] F[redik], Sundell,J.E., [&] Forsselius,E.J.E.
Luftfara. Radioföredrag. 1938
Urigsv. Sv
ruftskydd
Br.