Question

there is no date stamp on the photograph,but from the presence of the cars,it can be inferred that it had been pictured about 60 years ago​

Answer 1

The meaning of the given statement is- there is a photograph with the speaker. the photograph has no date o it. So, it is not possible to know the exact time of the picture but the speaker is smart enough to make out the time periods by analyzing the model of the cars present in the picture.

We can conclude from the statement that the speaker eagerly wants to know the time period of the given photograph. Also, the speaker is very intelligent to be able to think so critically.