pic of the smoke box front and rear sockets would help
do the lamps have lens?
do the bumpers have a white surround or are they plain black?
if lamps lens , what colours clear with red rear or just clear?
that pinkish chassis with skates could be between 69-78, the sharp hook , old spring,
makes me think 70 or a few years later -
ive got a similar but bit darker brown number 2 thats very similar-old passenger set with funky green and brown coaches -and its about 69-70 -it has no lens atall, and no white bumper edging
yours has no gold steam valve on the boiler and that makes it definitely in this earlier era
does it have lighting plugs?
i think that valves went gold about 78-79 if i recall
thats an odd brown , but not an unusual LGB brown, just havent seen a stainz that light
nice looking loco