Curta Type 1 - Varianten • Variations of Curta Type I
1947 ---------------------------------------- 19517
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
---
1970

Total 78730 units

Proto-types
901
(912)
---
---
---
---
---
---
---
---
---
---
---
---
---
---
80427
(80404)
---
901-9996
(912-978)
    













7100
8.93%
  
901-9996
(912-978)
1900
(1904)
---
9000
(8998)












~1300
 1.65%
  
901-9996
(912-978)
---
(2204)
(2591)












~50
0.063%
  
(1978)
(2023)













~2530
3.21%
  
901-9996
(912-978)
---
(3438)












70205
88.28%


    9001
(9021)
---
---
---
---
---
---
---
---
---
---
---
80427
(80404)
6576
8.27%
  
901
(912)
---
---
71781|
9321-9620












Setting knobs rectangular 72949
91.73%



7179-9320
|9621		 --- --- --- --- --- --- --- --- --- --- --- 80427
(80404)
Crank metal without arrow
31149
39.17%

901
(912)
---
---
---
---
---
---
---
32060
(32051)
         


Crank metal with arrow
14840
18.66%
                 
32060
(32093)
---
---
---
---
468903
(46883)


Crank complete Delrin
33538
42.17%
                            
468904
(46902)
---
80427
(80404)
Base plate with round lettering
6600
8.30%
901
(912)
---
---
75208
(7432)












Base plate with curved lettering
69585
87.50%




7521
(7549)
---
---
---
---
---
38000
(37996)
41100
(41109)
---
---
---
80185
(80151)
Base plate with curved lettering | large serial number
247
0.31%


                           
(80186)
(80404)
Base plate with parallel lettering
1000
1.26%
38000
(38038)
39000
(38948)
Base plate with parallel lettering & "Type I"
2100
2.64%










39000
(39037)
41100
(41073)




Four reversing lever arrows 26700
33.57%
901
(912)
 ---
 ---
 ---
 ---
 ---
 27600
(27552)








Two reversing lever arrows 52827
66.43%






27600
(27713)
 ---
 ---
 ---
 ---
 ---
 ---
 ---
 ---
 80427
(80404)
Clearing ring metal, screw
17769
22.57%
901
(912)
---
---
---
161465
(16062)











Clearing ring metal, rivet
-
-
          
16147
(16329)
---
---
---
---
---
---
---
---
???


Clearing ring plastic
-
-
                            
???
---
???
Crank handle old type
17769
22.57%
901
(912)
---
---
---
186702











Crank handle new type
28220
35.84%
         
18671
---
---
---
---
---
---
---
---
468903
(46883)


(serial numbers) = known samples
1 CURTA I Service Manual - Dismantling Stage E1-a (1953) - Group I - Group II
2 CURTA I Service Manual - Dismantling Stage E3-c (1961) - Group IV - Group V - Group VI
3 CURTA I Service Manual - Dismantling Stage E3-c (1961) - Group IV - Group V - Group VI
4 CURTA I Service Handbuch - Dismantling & Reassembly - 1-E (1967)
5 CURTA I Service Manual - Dismantling Stage E2-a (1953) - Group III - Group IV
6 In the beginning, not all serial numbers are representing produced Curtas - about 900 Curtas were never produced.
7 The production figures for the first five years cannot be precisely allocated.
8 Also the changeover to the new Zero positioning unit
A detailed description of the changes can be found in the Service Manual (Servicehandbuch)
A lot of mixed versions based on remnants of parts and repairs are known...
Curta Type 1 - Varianten der Kanister • Variations of Curta Type 1 Canisters (A fixed assignment to individual ranges of serial numbers is not possible...)
Curta Type 1 - Varianten der Kurbeln und Löscherringe - Variations of the Cranks and Clearing levers
Compilation of the named and planned calculating machines, prototypes and series models

© red-garlic design | All rights reserved - Alle Rechte vorbehalten - Tous droits réservés