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

In this issue (among others):

• Report from the Members' Hock in Pfäffikon (Motto: Old irons)
• From historian and iron collector to beaver baker
• Report of the IFHB Executive Board 05.2018 - 03.2020
• Information on the forthcoming election of the Executive Board
• Agenda of the IFHB General Assembly in Berlin
• Programme for the 12th International Typewriter Collectors' Meeting in Parcines
• Blind people correspond with sighted people - An antiquarian typewriter
  for the blind in Braille as well as for the sighted in plain writing

Peter Muckermann

In this issue (among others):

• The historic office technology page: Olivetti Divisumma 18
• My favorite machines: Ideal A typewriter
• Documents from the office world of the past:
  receipt dated 1941 for a Mercedes Addelektra
• Always worth a trip: A visit to the HNF Paderborn museum, 2020
• Board candidates introduce themselves
• Brunsviga B #25691, subtype BK

Peter Muckermann