Patina is evident on all surfaces of the bell and diaphragm. The tubing is brand new, never used and in great condition, replaced by Littmann service center prior to this listing. Thank you and best of luck. The item "3M Master Cardiology Stethoscope, Black Chestpiece, Tube and Binaural.27 inch" is in sale since Friday, April 5, 2019. This item is in the category "Business & Industrial\Healthcare, Lab & Dental\Medical/Lab Equipment Attachments & Accessories\Stethoscope Parts & Accessories". The seller is "dipmonkey" and is located in Bothell, Washington. This item can be shipped to United States.