First, Welcome to AirForums and congratulations on acquiring a wonderful trailer; the '65 models are my favorite. You will find a lot of good information here.
Yes, the VIN indicates the trailer is a 1965 22' Safari and decodes as follows:
J or S = factory, with J = Ohio and S = California
O = Land Yacht trim
22 = length in feet
5 = 1965 model year
245 = sequential number for twin bed model
Your Airstream should look like these:
Again, welcome aboard!