This is an Air Mail coverhttp://www.ebay.com/itm/1929-LINDBE...t_1974wt_904
Some things about it are for real. It is an FAM 5 Trip 2 Airmail Cover. The rubber-stamp cachet is correct.
The stamps are genuine.
But I have to say those red handstamps were made with the kind of modern self-inking stamps they make nowadays.
I have never seen a FAM 5 trip 2 cover with red "Charles Lindberg, Pilot" handstamps on it.
The rubber stamp cachet was very light in places, and someone touched it up, making it look fakey.