looking at the registry it does not make cence, frame number go up,  a lot of engine number go down.i did find one frame number just 52 before mine.did engine numbers go in order or did they just take one of the shelf and not bother about the number.

 As for engine number as I said before it has been ground of ,but i did not know why, I was talking to a gentleman this morning that said he had bought a number of ex usaf vehicles over the years and they all had the engine numbers ground of. must have been something they did when they sold them. we shall never know.  does any one know what range of numbers a 57/58 would come into. I might just stamp  the same number on it as the frame number.the DVLA would accept that because a lot of old british bikes had the same engine number as frame number.

 I did post a couple of pictures on  Simplex  automatic.  who can give me this imformation in writing.  that's the most important part.     eric

  I hope every one going to Portland has a good time ,sounds great. wish I could go somewhere like that.  The only Portland I have been to is the one in  Maine i,used to go there to visit my younger brother, that was until about eight years ago. good luck every body.   eric

Thank you ,thought it looked like it  but did not want to bugger it up and could not find my thread gauge,  eric

      Hi  Have done that and sent you a email, hope you get it ok,   All looks to be standard size and in good condition,  cant understand why it was taken apart.    Thanks again   eric

 Thanks  Pete, just my luck  will try again   eric