Enigma Zorki 1-2 (?)

I ask the experts of Zorki 1 and Zorki 2 for help.

1) Is this camera a bad puzzle of Zorki 1 and Zorki 2?

Or,

2) Is this a transitional camera between Zorki 1 and Zorki 2?

I think that:

- this camera is a bad puzzle of Zorki 1 and Zorki 2;

- the upper carter of Zorki 2 has been replaced with the carter of Zorki 1d (zorki 1d variant, book by J.L. Princelle).

I thank you in advance and I look forward to hearing your opinions.

Note:

Camera n. 551699

Lens n. 8086541 - Industar 50 - 5cm - f. 3.5

- on the upper carter there is only written the word “Zorki”;

- the camera number is shown on the back of the camera as on the Zorki 2 and the Zorki 1d;

- the time selector is from Zorki 1;

- the self-timer button,which is absent on Zorki 1, is shorter than the button on the Zorki 2.