Borek
Mentor
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You are right - multiple exposure with a cover on the lens. Cover has to be very precise, but it was not that difficult to make one with a thick black paper and a piece of cardboard.
In seventies I have seen pictures taken with much more elaborate cover that allowed taking five shots, producing a quintuple.
In seventies I have seen pictures taken with much more elaborate cover that allowed taking five shots, producing a quintuple.
