I'll start with the 'coolest' first: pictures posted below listing.
These have had very little run time as I run, mostly, passenger cars.
Some were never run, like Kilowatt as it sat on an end table.
I prefer 'pick up' only but will have to get weight and destination and take to UPS to figure out shipping charges.
Obviously, just buying one will, probably, be expensive (ratio wise) to ship (UPS with insurance).
Members can 'click' on my name to get my email.
K-line K612-1771, Nickel Plate smoking caboose; $60. (SOLD)
K-line K712-1891, PRR remote operating coal dump car: $65
K-line K7041-8011, Operating voltmeter car (kilowatt that we saw as a kid): $75 (SOLD)
Lionel 6-36727, Weyerhaeuser 'Moe and Joe' operating lumber car: $55
MTH 20-90028E, Premier GN Coil car, $45 OBO. (SOLD)
MTH 20-94365, Premier GN Western Fruit Express refrigeration car set of 2, 2 per set: 2 for $85 OBO.
MTH 30-76076, Railking GN flatcar with trailer (have 2), $55 per car OBO.
MTH 20-98139, Premier GN flat car with two 20' trailers, $55 OBO.
Atlas 8304-3, GN double sheathed wood box car, $55 OBO.
MTH 20-91052, Premier GN extended vision caboose, $55 OBO.
MTH 20-93014, Premier GN 40' single door boxcar, $55 OBO.
MTH 20-97638, Premier GN 4-bay hopper cars (have 2), $35 each OBO.
MTH 20-93184, Premier GN 50' double door box car, $40 OBO
Weaver 39855 GN red box car, $20 OBO.
Unknown GN Gondola #72839, $35 OBO.
Atlas 68144, 68171, 68239 scale GN Western Fruit Express refrigerator cars (have 3, no boxes), $45 each OBO. (SOLD)
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Pictures and descriptions:
K-line K612-1771, Nickel Plate smoking caboose; $60.
Can't beat a 'smoking caboose' 
Functional doors.
Steps are perforated.
To me, it appears the roof is slightly deformed due to the heat: something the manufacturer didn't test!
ON/OFF for smoke.
Only 4 drops.
K-line K712-1891, PRR remote operating coal dump car: $65
Can 'dump' anywhere with the remote.
Input to the car's 'address'.
Reset if power loss.
K-line K7041-8011, Operating voltmeter car (kilowatt that we saw as a kid): $75.
Doesn't get any cooler than this. We saw Kilowatt back in the 50's.
Gives track voltage.
Lionel 6-36727, Weyerhaeuser 'Moe and Joe' operating lumber car: $55
tested 'good'.
Moe and Joe unloads 5 boards.
Nicely detailed figures versus the post war blue rubber guys with no features.
MTH 20-90028E, Premier GN Coil car, $45 OBO.
Still has the original packaging for the coils; never removed.
MTH 20-94365, Premier GN Western Fruit Express refrigeration car set of 2, 2 per set: 2 for $85 OBO.
These hatches and 'bars' are sturdy (to a degree!).
Nice 'wood grain'.
Even has coupler covers for mounting to the car versus the trucks.
MTH 30-76076, Railking GN flatcar with trailer (have 2), $55 per car OBO.
Trailer doors open.
Nick.
MTH 20-98139, Premier GN flat car with two 20' trailers, $55 OBO.
Doors open.
Argh: I broke the hand wheel while inserting into the foam box.
Atlas 8304-3, GN double sheathed wood box car, $55 OBO.
A very nicely scaled car.
Even has 'wood grain' boards underneath.
Even has air hoses.
MTH 20-91052, Premier GN extended vision caboose, $55 OBO.
'see through' walk way.
MTH 20-93014, Premier GN 40' single door boxcar, $55 OBO.
MTH 20-97638, Premier GN 4-bay hopper cars (have 2), $35 each OBO.
MTH 20-93184, Premier GN 50' double door box car, $40 OBO
Nick on the roof.
Weaver 39855 GN red box car, $20 OBO.
Unknown GN Gondola #72839, $35 OBO.
A very nice car with no name on it! Also, no box.
Ends fold down.
Nice 'wood grain' floor.
Atlas 68144, 68171, 68239 scale GN Western Fruit Express refrigerator cars (have 3, no boxes), $45 each OBO.
These cars are 'extremely' scale.
These hatches are so scale that they are very delicate as 3 or 4 have a door latch damage. The long bar is attached to a metal loop and can fall to the side so the latch has to be rotated to the top of the loop to secure the hatch.
Damage. Parts are there.
another damage.
Very nice cars, though.
Marks.
