Thank you for your replies.

T-Mar- thank you for uploading the photo of my bike (I don't know how though). I tried to upload this photo, but was unable to, due to being a new member. Maybe senior members have access to failed uploaded pics?
I have seen pictures of the Pearl Blue PSV10 'Roubaix', but didn't think it was the same colour as mine (it looks too pale compared to my darker blue) and also has different decals.

EJW- thanks for posting the photo of your PSV, it looks great, and identical to mine (regarding the decals and the components I can see).

I am delighted with my bike, particularly as I didn't pay very much for it. However, there is a problem with the Helicomatic freewheel; the outer 14t screw on cog is broken. I am trying to source one or alternatively a complete 6 speed freewheel, but I am realising this might be difficult. I would like to keep the bike original and not have to change the rear hub if I can help it.

Thanks again