That is kind of a tough one! The FAA does not stamp or certify your logbook. They say your logbook is the official record. The only thing I was able to get from them was all my medical records, all my certification info, (applications for various ratings etc) and a letter of accidents and incidents.
If possible you may be able to get your employer to certify your time with them....in my case my employer said they only keep those records for 3 years so were unable to give me a letter other than I had been employed in good standing for 12 years......I tried to back this up with tax records and training records I had saved