The Perl

I got a new toy today. It is a Welta "Perle" 6x4.5cm camera. It is 50+ years old and ways a ton. Everything seems to work quite fine, but I have one problem - I can't see the frame counts in the little red windows on the back of the camera. At the moment I have just played it save and made only a few photos far apart from each others. I will develop the film over Easter and see if it is worthwhile to persue this adventure further. It would be a wonderful little "Pocket camera"