MACHINE SWITCHING TELEPHONE SYSTEM 



61 



The subscriber's station is equipped with the usual form of tele- 

 phone instrument and, in addition, with a calling device known as a 

 "dial," mounted at the base of the desk stand, as shown in Fig. 5. 

 This dial has ten finger holes, bearing letters and figures, as shown in 

 Fig. 6. 



RNOR AOJUSTINC 

 GOVERNOh 



Fig. 6 — Subscriber's Dial 



In making a call the subscriber will, of course, first refer to the 

 telephone directory. He will find in the directory a listing that is 

 only slightly different from that to which he is accustomed. Typical 

 samples of this new form of telephone listing for New York City 

 are shown in Fig. 7. As will be noted, these conform to the present 



Argent Co. 1400 Bway GRE eley 5513 



Argentina Brazil & Chile Shipping Co 



70 Wall. HAN over 0307 

 Argentine Cenl Consulate, 17 Batry pL.RECtor 6946 

 Argentine Impt & Expt Cnrp, Prod Ex...BR0ad 1768 



Argentine Mercantile Corp, 42 Bway BR0 ad 5066 



Argentine Naval Commission, 2 W 67..C0Lmbus 5623 



Argentine Quebracho Co, 80 Maiden la J0H n 1652 



Argentine Railway Co, 25 Broad BR0 id 1383 



Argentine Trading Co, 1164 Bway MAD Sq 1871 



Argeres Bros. Restrnt, 86 6th av SPR ing 5337 



ArgeroA. Grocer, 119 9th a? CHE Isea 6255 



Arghis A, Tobacco, 74 Wall HAN over 6311 



Argirople Theodore, Jwlr, 406 8th a?..FARragut 9772 

 Argo Packing Corpn, 705 Greenwich. . .FAR ragut 4505 



Argon Dress Co, 24 E 12 STU yvsnt 2011 



Argonaut Supply Corp, 50 Union sq.. STU yvsnt 7476 

 Argonne Steamship Co. 17 Battery pl...RECtor 2493 



Argos Ad-Art Co. 1133 Bway FAR ragut 5986 



Argosy The (A Pub), 280 Bway W0R th 8800 



Fig. 7 — Typical Examples of New Form of Listing Telephcne Numbers 



manual listings, except that the first three letters of the office name 

 are set out prominently. This numbering system will be discussed 

 later in this paper. 



