One Vintage IBM 2-Button Trackball PS/2 Personal Computer PC Mouse Model 6450350

Please examine the photos carefully, and if you need to see something else, please let me know. Between the photos and description, the item fully described. 

S/N D-Q 23-20157 Certified to comply with the limits for a Class B computing device pursuant to subpart J of Part 15 of FCC rules. 

Smoke-free home.

Please make all payments immediately. 
Delivery confirmation and tracking included on ALL packages to protect both parties.  Priority USPS mail and USPS Ground Advantage both come with up to $100 insurance.  I personally do not insure the package. Once it leaves my possession, I am not responsible for it. 

RETURNS: This is vintage. No returns. Sold As Is.  Shipping charges will NOT be refunded for either direction, neither your costs nor mine. 

Shipping: I will combine shipping for purchases made at the same time. Please message me before you purchase to combine shipping. I will be happy to weigh your selections together and give you a shipping quote. 

I try to describe the items as best I can.  Please ask all questions before bidding.   If I make a mistake, please allow me to correct it.  Thanks!

Photo 3-1097