Vintage Sears Roebuck and Co.  Smoke Detector still in orgianal shrink wrap with original box.  Features a great Mallory Mercury Duracell 11.2 Volt Battery stil in it's pretty red box (shrink wrapped to the Smoke Detector).    The battery has TR431 on the front.  The Detector is white plastic.  Shrink wrap plastic has a small tear, cardboard has age yellowing and black magic marker markings on back.  That's all that I could find wrong with it.  Email with any questions. 
Email for additional photos and international shipping quotes.   
 If you have any questions or need any more information, I'll be glad to try to help.
From my non smoking home. MO or Paypal.