In this issue (among others):

• World’s first graphic calculators
• Documents from the past of the office world:
  Ad for the gold-plated Princess 300 typewriter
• Schedule for the IFHB "Olympia meeting", Oct. 9-11, 2020
• The Louis Vuitton typewriter
• Purchasing in 1985
• Mars typewriter found

Peter Muckermann

In this issue (among others):

• Mercedes 2: before and after
• Ruf 24 / Protos typewriter
• Documents from the past of the office world:
  A 1919 letter from Felt & Tarrant in Amsterdam
• Office antiques auction in Cologne, April 4, 2020
• Obituaries
• Kosmopolit typewriter found
• Piana typewriter
• Regent typewriter

Peter Muckermann

Hi there I.F.H.B.,

I have a Unitas calculator I've recently got up and going again and did a YouTube video about it on my YouTube channel

• https://www.youtube.com/channel/UCtBGrxdGsbbyz9oZk8mKJbA/videos

• https://www.youtube.com/watch?v=4leOialwf1Q

Ed

This issue contains

• The memoirs of "Madame Erika"
• Konrad Zuse – from a "calculator servant" to the father of the computer (on the occasion of his 110th birthday)
• Slide calculator – patent DE321156 from Sabielny
• SILMA = SIL-benschreib-MA-schine (syllable typewriter)
• Brunsvigas Adding Machine - Born in the USA
• Arithmeum: 20 years of exhibiting mechanical calculators
• The "Optimus" calculating machine
• A new look into old offices: training centre with Olympia adding machines

Martin Reese

In this issue (among others):

• Curiosities from the office world
• Machine of the month: Klein-Adler 1
• Documents from the past of the office world:
  receipt from Greif-Werke 1919
• A visit to the Lawena Museum in Triesen, Liechtenstein
• Update on the IFHB election

Peter Muckermann