Was wondering about a few things on my '52 gmc 9700. It has an Obeco flat deck on it (I think it might have actually been a grain box that lost it's sides at some point in the past) Is there any info / history out there on this company? Would be great to find an owners manual or a parts book, but I think I'm getting my hopes up there. I did find the S/N of it, stamped in the side, but no data tag.