UnNamed Accordion

I received the following email from a reader requesting help identifying an interesting sounding accordion:

HI, I’m trying to help some family members identify an accordion that they don’t particularly want or like but I do. The logo on the front of the instrument is a triangle, white plastic, with the first 4 letters “Stre” and on a seperate sticker says made in italy. 41 key , 19 1/4″ key board and 120 base buttons with a Black body. I’m guessing it to have been made in the 50′s . The closure straps with snaps are a nicely braided stainless or chrome over brass wire. I will be able to send pics later when I return from this trip. I will take several before leaving. Thanks for any assistance that you may be able to render.——steve

Before we see the pictures of this interesting sounding accordion, does anyone have any ideas that might help lead us to some answers on its age, brand, value, etc?

Now we Have Pictures Of this Accordion!

Very Interesting looking Accordion, Indeed