Irish P&T
Telephone No. 503

Handset Number - Initially fitted with Chicago type 602 and later fitted with 606

Induction, Coil Number - 30

Bell Number - Bell No. 70

Dial Number - Dial Automatic No. 2 but later fitted with a Dial Automatic No. 10

Drawing Number - TX650

Drawing date -

Manufacturer - AE Chicago

Notes - This is the automatic version of the Telephone No. 501