This issue contains

• 100 Years of Walther Calculators - Part 2: R-Series 1927 – 1943
• The extensive color range of the Erika model range 5 / 6 / M / S
• Effortless division on any mechanical adding device
• Senator – an unusual typewriter
• Automatic multiplication in mechanical calculating machines
• Development history of shorthand writing – Part 3: the long road to a unified shorthand
• The answer to the riddle: Why Minerva - Resulta - Regina - Spezial and Summira are all related - Part I

This issue contains:

• Ein interessantes pädagogisches Projekt
• Rostige Kunst
• BriCal - eine runde Sache
• Unbekannte Modellbezeichnungen von BriCal-B und -C Addiermaschinen
• ARCHO-SPEZIAL
• Sammlertreffen in Köln: Ein Rückblick
• Nachtrag zur Historischen Bürowelt Nr. 130
• Buchbesprechung: Handbuch der Büromaschinen
• Ein kurioses Gerät – aber wofür?
• Integrierte Schaltung 1973

This issue contains:

• 30 years of collectors' meetings in Garbsen
• Measuring tape with disk
• Article from the "Südkurier" No. 73
• SHIFT HAPPENS
• Book review of a rediscovered book
• 1+1 remains 10 - New edition
• A beastly device ...

This issue contains:

• Small local meeting in Ludwigsburg
• Marchant quick calculation machines
• Historical typewriter exhibition opens in Hofheim
• Historical typewriters: my passion
• "Colorful office machines" at the collectors' meeting in Braak
• PAROS Pfeiffer-Addi roller saver
• A current story from the past from the series "That was tomorrow"
• 1924 - 2024: 100 years of GROMA typewriters

This issue contains

• 100 years of Walther calculating machines Part 1: The Pre-series models
• My virtual water tank - The analog computer "The Analog Thing"
• Material analysis of a typewriter type
• ADLER model 16
• History of the development of shorthand - Part 2: The most important German shorthand schools
• The Arithmaurel, the prototype of a fascinating calculating machine