I need older storm window latches

We don't have this exact latch, but one of ours may still work as a substitute. It would depend on your precise measurements, though. I recommend looking through our entire selection of storm panel latches here and seeing if anything we carry can be used as a replacement. 

I'm afraid without knowing your precise dimensions, there's no way we can find a match. Measurements for these get pretty specific, so just having a tape measurer isn't enough. There are also more dimensions to consider than height and length, such as thickness and even the width and height of the pin, independent of the rest of the latch. If you browse through the selection I linked above, it should give you a good idea of what measurements are important. We need you to be as exact as possible.