Genuine Curta Type 1 demonstration models

The following Curta serial numbers represent genuine Curta Type 1 demonstration models by Contina AG Mauren
(most of them in the green demonstration case):

8651
12591
13268
14387
14389
14390
14392
14394
14402
14408
24558
24655
24879
25242
25945
26197
26224
26501
26507
26563
26573
26590
29208
29302
29600
29323
29924
33129
33743
34619
34656
35177
36642
37262
37377
38409
38419
38439
38594
38655
39197




This information has been gathered from various sources in recent years. And yes this list is not complete... any additions

Note: Contina AG has never produced Curta Type 2 demonstration models

updated July 2026