Looks a lot like a model 8 to me.
Here some pictures of my one.
[Linked Image]
[Linked Image]
Mine has the wrong air snorkel on it,I'd say was changed before I got it.
There is also one on eBay which has had some modifications done to the base.Has had some bent pieces of steel welded to the base as well as some blocks of steel added to the axle supports doesn't look that great.

Here for a good time,not a long time.