Where to find the model number

SOURCE: necchi

Same here but found this, hope it helps you out : )
http://www.sewusa.com/Threading_Diagrams/Threading_Pages/Necchi_Sewing_Machine_Threading/Necchi_584_586_threading_Diagram.htm

SOURCE: manual fornecchi-alco sewing machine model 301

I have an ALCO 2200. Luckily I have the manual. If some one need the manual, I can photocopy and send it to you, if you do not mind paying the postage. :)

SOURCE: necchi sewing machine

i repair a lot of sewing machines as a hobby .. the necchi is one of the better ones .. they are easy to use and work well .. i almost always dontate the repaired machines to places like "womens shelter" .. "home for troubled girls" or just give them to someone that has nothing or cant afford new machines ... it sometimes makes a difference in their life if someone helps them get started .. modern machines vary from really cheap junkers that somehow work to really expensive machines that do everything but are completely out of reach for many.. the old necchis are better than many new machines but no one knows that .. so typically they sell for only $20 to $50 ... but if you donate a working machine to someone it can help, then its worth it weight in gold ..

SOURCE: Manual for Necchi Royal series model #3205FA

I could not find a free, PDF manual. But I did find this manual you could purchase for about 15 bucks.

SOURCE: would like manuel on the

I suggest to go to the necchi website & contact the parts dept & see if they have one