SIEMENS MASTERSET 111 & 112


Standard telephone of the 1980's produced by Siemens of Germany..

Tone or pulse dialling.

Colours are red, green, light grey and beige.

Click here for the sales brochure.

Understanding the numbers on the base.
These telephones have no serial numbers but, with reference to the picture below, the other numbers can be integrated as follows:-

  • CTVN is the date and manufacturing plant.  In this case "manufactured in Bocholt in November 1987".
  • The "A" number is the circuit diagram.
  • The "S" number is the manufacturing document listing all components of this phone.
  • P4166B is the identification number of the person having completed the telephone's final test before shipping.


 

Masterset 111


Masterset 112

 
 
BACK Home page BT/GPO Telephones Search the Site Glossary of Telecom Terminology Quick Find All Telephone Systems

Last revised: November 24, 2023

FM