![Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Navy Blue Tube, 27 Inch, 5622 & 40007 Stethoscope Identification Tag, Black : Industrial & Scientific Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Navy Blue Tube, 27 Inch, 5622 & 40007 Stethoscope Identification Tag, Black : Industrial & Scientific](https://m.media-amazon.com/images/I/51Oi27PpwFS.jpg)
Amazon.com: 3M Littmann Classic III Monitoring Stethoscope, Navy Blue Tube, 27 Inch, 5622 & 40007 Stethoscope Identification Tag, Black : Industrial & Scientific
![My dad gave me his old Littmann stethoscope that he bought in the 80s or the 90s. The serial number is no longer on it, can anyone help me find the model? : My dad gave me his old Littmann stethoscope that he bought in the 80s or the 90s. The serial number is no longer on it, can anyone help me find the model? :](https://i.redd.it/5kzmvalg3el21.jpg)
My dad gave me his old Littmann stethoscope that he bought in the 80s or the 90s. The serial number is no longer on it, can anyone help me find the model? :
![3M Littmann Stethoscopes on X: "To register your 3M™ Littmann® Stethoscope, you'll need your serial number, which is found on your chestpiece. http://t.co/ElEnz3HmSl" / X 3M Littmann Stethoscopes on X: "To register your 3M™ Littmann® Stethoscope, you'll need your serial number, which is found on your chestpiece. http://t.co/ElEnz3HmSl" / X](https://pbs.twimg.com/media/B-I3kK9IgAAfLXJ.jpg)
3M Littmann Stethoscopes on X: "To register your 3M™ Littmann® Stethoscope, you'll need your serial number, which is found on your chestpiece. http://t.co/ElEnz3HmSl" / X
3M Health Care - What's the first thing you should do with your new Littmann ®stethoscope? Right: put it on and try it out. The second thing you should do is register your
![Amazon.com: Customer reviews: 3M Littmann Stethoscope, Master Cardiology, Navy Blue Tube, Stainless Steel Chestpiece, 27 inch, 2164 Amazon.com: Customer reviews: 3M Littmann Stethoscope, Master Cardiology, Navy Blue Tube, Stainless Steel Chestpiece, 27 inch, 2164](https://m.media-amazon.com/images/I/61SC+n6DXXL._UC256,256_CACC,256,256_.jpg)