1960's(?) Raleigh Roadster(?)

[fiveSixteenths]

Evening all.
Rescued this morning from a fate worse than recycling, a complete - and I assume original - Raleigh 'roadster'.
Could really do with some help dating it, as so far it could be anywhere between 1950 and 1980...

The bottom bracket's stamped 1710926
The seatpost lug's also stamped 99130 DJ

So far, could be (seatpost stamp) 'Convention #2' - so possibly 1948 through the '50's.
Or possibly (BB stamp) '63 - '69
Both of these I looked up at the excellent http://www.kurtkaminer.com/TH_raleigh_s ... ml#mid60bb).

The bike looks like it might have had new(!) downtube decals applied ages ago, they're not so straight, look too small to me, and run over the (really nice) red lining.
The chain guard also looks a big, well, wrong, really. I spotted some for sale that were labelled 1970's. As it's the only thing that's different from all the pics on the web of roadsters, I thought it might be a clue. But I suspect it's a red herring. Could a bike shop have made some upgrades in the late '60's to shift this?
Would welcome any comments before the restoration starts...
Looks like this right now:

 

[Piperdave]

Re:

Very interesting...see my Royal Enfield thread. I picked it up as you were posting.....

 

[fiveSixteenths]

Saw that. Have made a start stripping it all back, bar the frame paint. Might keep the patina'd look!

 

[Jonny69]

I agree it looks like the Raleigh decals don't belong. You might be able to date it by the Sturmey Archer hub. There's usually a 2-digit number which corresponds to the year, e.g. 67 = 1967.

 

[fiveSixteenths]

Re:

It's single speed so even more if a mystery! Spotted exactly that type in a station bike rack about three hours ago. Was tempted to leave a note! Must be the sunshine brings out the steel frames.