Where Can I find the serial number on my Nikon Prostaff 3 Rangefinder?

I just bought my rangefinder from cabelas, i need to fill out the warranty papers and its asking me for the product serial number of my rangefinder, i can't seem to find it, or is in the 2 letters and numbers on a sticker on the bottom of my rangefinder?

If it is NOT on the rangefinder body somewhere, it does not have a serial number.