I queried the value of this in the appraisal thread. Thanks for the info from those who responded. I have tentatively dated this a 47,in part because I found a nearly identical bike on the forums here that the owner has dated 1946. Only difference (other than the mods on mine) is the 531 decal. I read somewhere use of the small 531 started around 1947 and now I cannot find it. Should have bookmarked it. Still researching. It is a bit rough around the edges and I will get to deal with the plethora of 597mm tire options available. . No plans to refinish at this time. The correct markings are not available and I like the patina. The tiny 531 decal is still visible, as are the Lenton Sports ST markings. This bike has a touring history and was ridden all over Missouri and on the east coast by its first owner. Sometime in the 60s, the original steel rims were replaced with Weinmann alloy and a 3 speed freewheel was thrown into the mix. This work was done by Ray Florman of St Louis. If you don't know who he is, ask John Howard. I will be looking for some more original brake levers for it. Calipers are a later addition but I will probably keep those. Fenders are replacement Bluemels AirWeight. I thought the bars were not original until I saw another thread where someone had scored a set of bars for a Lenton Sports and they are what I have. Will give it some TLC and see about getting it back on the road.
Lenton Sports 001 by CV6Enterprises, on Flickr
Lenton Sports 005 by CV6Enterprises, on Flickr
I thought the saddle might be salvageable until Ray pointed out the tear by the rivet.
Lenton Sports 011 by CV6Enterprises, on Flickr
Serial number does not quite fit the info on The Headbadge....three digits vs four or five digits. I am hoping Kurt jumps in on this. Do not know if they would have used leading zeros.
Lenton Sports 012 by CV6Enterprises, on Flickr
Bayliss Wiley front hub with original (AFAIK) Raleigh wing nut QR
Lenton Sports 016 by CV6Enterprises, on Flickr
Top tube shifter similar to SA and other brands, but I have not found any info on this particular brand. Got the cable to use it also.
Lenton Sports 020 by CV6Enterprises, on Flickr
BB has oiler port. From what I am told, the type is an older version.
Raleigh Lenton Sports BB 001 by CV6Enterprises, on Flickr