don't really collect jars bur don't recall seeing that jar before , there is all kinds of things you can find if you search around ( I found a milk jug under a pine tree the other day but now we have snow on the ground ) ,
I don't often do as well in urban areas though but is still places within them where you can find stuff if you know where to look
Yeah that's definitely a creamer. The Jewel jar I see from time to time, I think there was one among our canning jars in the garage in fact, though I think they're from the 40s or 50s or so, maybe earlier.