Ackerman-Boland 3 button desk set
1906
"Bailleux-Ader" Desk Telephone
1906

"Le Trefle" Desk Telephone

1906

About This Phone

System "Bailleux", manufacturer: "Société Industrielle des Téléphones, Paris (S.I.T.)", serial no. 6512, speaking horn, 2 handsets by "S.I.T.", System Ader, ebonite base and head.