I used the iAP which got from SJ office, and when I used it into US, the officer stamped 1 page of the iAP and returned all 3 pages to me. I remember when I got the AP in SJ office, the officer told me to send back 1 page to SJ office when the AP expiration comes. Now i need to send 1 page back to SJ, which page should I send, the one stamped, another one with photo, or the one without photo? Thanks.