Can anyone read #Polish ?

I came into contact with some letters addressed to my great grandmother. They're from 1934 (or 1939, the handwriting is a bit sloppy), and I was able to GIMP the scans to be pretty clear, but I don't know any polish (in fact, I'm only *guessing* that they're polish).

I don't want to post them publicly (because I have no idea what's on them), but if you're interested, then maybe hit me up so I can send them via email.