Time Line

The small size of my collection allows presentation along a time axis together with some basic information:

Weight, price (in terms of # months average income for a Dutch workman), year of introduction

Year of introduction, weight,  price in terms of work for an average labouror

1956

13 Kg

7 mo

6 Kg

2,5 mo

1954

12 Kg

10 mo

7 Kg

1 mo

1952

6 Kg

4 mo

Brunsviga 11E

Hamann 300

Facit CA1-13

1968

7 Kg

2 mo

Bohn Contex 55

1976

1,5 Kg

2 mo

Year of introduction, weight,  price in terms of work for an average labouror

0,5 Kg

1 mo

1 wk

Mechanical Calculators

Electronic Calculators

Olympia CD400

Soemtron 215

5 Kg

7 mo

16 Kg

6 mo

18 Kg

1953

Canon LE-10

1964

Brunsviga 11E Hamann 300 Facit CA1-13

Hamann 505

1962

Brunsviga 13RM

5 mo

Friden 1217

1967

20 Kg

5 mo

Friden 1217 Bohn Contex 55

Philips P252

2,5 mo

1,5 Kg

Philips P252 Sharp QT8B

Sharp QT8B

Brunsviga 13RM Olympia CD400 Canon LE-10 (Palmtronic) HP-97 Casio FX-801P

Casio FX-801P

HP-97

1981

1,1 Kg

Hamann 505

1975

1980

1970

Programmable Machines

1950

Hamann ManusR

18 Kg

20 mo

Marchant 10AFE

Marchant 10AFE

1962

21 Kg

8 mo

Soemtron 215

1 mo

1,6 Kg

Victor 1900

Victor 1900

1973

Hamann Manus R MBO TRS 1300P

1977

3 Kg

1 wk

MBO TRS 1300P

3,5 Kg

2 mo

Friden (Singer) EC 1117

1971

Friden (Singer) EC 1117

Precisa 366-12

1968

9 Kg

3 mo

Precisa 366-12 IBM Selectric II Olympia RA16

6 mo

15 Kg

1961

Friden SBT10

1959

12 mo

Friden SBT10

18 Kg

20 mo

1953

MADAS 20ATG

Madas 20ATG

Diehl DSR18

16 Kg

16 mo

Diehl DSR18

Brunsviga 16E

17 Kg

7 mo

Brunsviga 16E

1955

20 Kg

1957

1960

Olympia RA16

1 wk

1,7 Kg

ELKA 53

ELKA 53

1976

< 1 wk

0,25 Kg

LLoyds Accumatic 55

Lloyds Accumatic 55

18 Kg

6 mo

Marchant 8 CMR

1963

1965

Marchant 8CMR

< 1 wk

Casio FX-7000G

Casio FX-7000G

152 gr

1985