Where can I find the vehicle ID number on a ledger trailer

Old-Biscut. I just saw the info you posted with the year info and link for additional info. Thanks. I at least know it is a 1996 or newer. I am hoping to narrow it down to the exact year. If someone can tell me how to post the other photos I have of it I will add them. The only info I can find about adding photos say they have to already be posted to the web for public use. Cannot figure out how to add ahem from my computer