Commentary for Kiddushin 119:13

In this case, all the man has to do is demonstrate that he owns two hundred zuz. Again, she is betrothed immediately and he must prove that he has two hundred zuz. However, we should note that in order to be certain that the betrothal is invalid she would have to prove that he doesn’t own two hundred zuz. This will not be easy and again the woman is in a disadvantageous situation.

Here he must not only own two hundred zuz, but show her the cash (or its equivalent). He may not show her two hundred zuz lying on a table unless he actually owns them. Just as in section two, this too seems to be better for the woman. Here she can actually see that he owns the two hundred zuz and need not worry about proving (or disproving) it.