Vivitar 70-150mm F3.8 with Matching 2X Multiplier with Canon FD Mount.  The lens is used and shows average wear for its age.   Focus and aperture function correctly.  The glass is clean, but there is some internal dust.   Comes with both end caps and the matching 2x teleconverter.  It is completely manual – aperture and focus. I mounted the lens on a digital mirrorless camera and took the photo of the flowers in the listing.  The lens functions correctly.  Remember the limitations of using a teleconverter.  There is a loss of two f-stops with a 2X teleconverter. Based on the serial number, I believe Kiron manufactured this lens for Vivitar. Shipment to the United States only. Delivery tracking provided.