In one of the continuing strange saga's of the toy train world, Hafner produced TWO streamlined cabooses, one short and one long. This is the "long" caboose, listed in the Hafner catalog as No. 404. This caboose itself came in two varieties, one red and white and this one red and yellow. The long cars at 6 3/4" long first appeared in 1938 and are controversial with collectors as some believe them too long for their wheelbase. The short cars, very similar in styling and lithography are 5 5/16" long and made about the same time, perhaps a little later, are liked better by some collectors because of their better match in scale to the available locomotives. However, the long cars are nicely made and brightly colored and were very popular with the then also new 1010 steam locomotive also first produced in 1938. These cars lasted until the end of the Hafner era in 1951 but were not carried over into the Wyandotte line when they took over the company in 1951.
Note that this car clearly reflects the "craze of streamlining" that took place in the US in the later part of the 1930's. In fact the copula is so low and streamlined, it is hard to believe it would be useful for anything and clearly not provide any useful visual advantage for observing the train. Hafner even labeled the freight cars..."streamliners" both in a broad band at the top and in the logo on the side and doors.
The 3057 was produced both pre and post war for many years and came in at least two color schemes both red/yellow and red/ white (I only have this red/yellow version). It came in many sets and the one I have is posted below. Note the red/chrome Type 1 1010 loco , most likely made in the late 1930's although positive dating of Hafner is almost impossible without the set box. This set is rather deluxe because of the use of the 6 3/4" streamline freights and the chrome trim / side panels.
I know I am early for T.E.T. but I am tied up tomorrow so am posting late Monday evening.
Best Wishes
Don