M101 6 Bolt Lug Pattern?

I've done my homework and I can't seem to find any information on this lug bolt pattern on M101 A3 (seems to be an early version with A2 body) .

I've uncovered a TON of info on SS but nobody mentions 6 lugs. It's only 5 bolts on A1 and 8 bolts on A2 & A3.

Would anyone know what pattern this is and how available wheels are? Is it possible there's an adapter hiding behind that wheel and it's really an 8 lug?

That’s the larger m105 series trailer. 20” wheel with a 6 lug budd pattern, same as on m35 deuces.

Ah.....It all makes sense now. Guess that's why the springs were so big too. Thank you!!!!

The question has been answered by the Evil Doc, this is just for general information.

The only time I can think of that you'd see six lugs on an M101 is back when they were used with M715s, and then only if the trailer had lost a tire in the field and had the M715's spare on it. So very rarely.
There was a bolt-on adapter to use the M715 six-lug spare tire. I have a couple of those, and they are a clunky piece of gear!

Cheers