update: wow, now it's mine & it isn't even a Sports...
hey all, thank you for the responses.
so i ended up getting the bike- after surmising that it must be a '69
(on the SA rear hub) & that although it has some small dents in the fender & such,
it was in pretty great shape. the rims sparkle and i couldn't believe they're around 40 years old. outfitted with new tubes/tires, seemingly updated brake-pads,
everything else seems original.
it turns out that this bike isn't a Sports but rather a Colt, which seems to be
more like the Sports' younger sibling. now i'm having trouble aging it because
while the hub says '69, (according to the catalog) the 1969 Raleigh 3-speed Colt
had a two-tone seat & a font on the down-tube that looks different as well.
my bike's saddle is a Brooks (as the ad claimed), but it's solid black leather
w/ neither those sidelong rivets, nor the large visible springs at the rear.
i suppose it's possible someone replaced the seat with the one it currently has. ultimately this bike looks more like the 1970's Colt & i'm wondering-
is it possible that Raleigh used a '69 hub on a '70 bike?
i will post photos when i can.