IH model 4 dump trailer

[DeltaBravo 0]

Looking for any information on this model 4 International Harvester metal lawn dump trailer. It your standard small size (1/3 or 1/2 yard) with removable end gate. Can the year of mfr be decoded from the serial number? s/n is 13000040008912.

[Dark 0]

is it hydralic or manual ? what is the repair you have to do to this?

[DeltaBravo 0]

It's a manual dump. I thought there might be some owner's manuals, etc that I haven't found through Google. I took it apart, and it's pretty simple. Thanks.