classic motorcycle forum

Good evening to all Vintage Fans,
I recently bought an Enfield and I need advice on where to look for parts and ID on the Bike,
I attached a foto so you might be able to ID it for me,
 
It should be a 4.88  according to the information I gathered untill now,
My frame numer is 6009 engine number 5137D
of course I have several questions but the most important for me is to
find out which year it was built, because the parts catalogue I found at Barnstomers is from 1928.
and it showes different parts like, oiltank, gerabox, etc which aren't like my parts.
I only have expierience with german bikes,
so need your help to come further.
I tried to ID my modell through pics in internet but, didn't find the sv modell only ohv modell 2 pics at flickr.


I'm also greatfull for parts sources if you might know the modell,
As you see a lot of main parts missing, but it's great substance for an english project,
At this moment withput picture, folder ist full.

Thanks in advance,
Regards :
Lajos from Hungary