couple more thoughts (I just love a good mystery): the catalog shows and lists a lamp-boss on the fork, yours does not have it, right? the BB may not be original, but I'd want to open it up and check the threading (24 or 26tpi?) as well as look for more original paint clues. There's a chance the fork is not original, especially if the paint fragments don't match, but the crown looks pretty consistent with others used by Raleigh (Nervex or not) as well as loads of other makes, too.