Don
Here's a set from around 1930 which I purchased out of a home many years ago. There was no set box so I don't know the set designation. As you can see it has your two freight cars...well, sort of, the number on the caboose is 1114 and not 1117.
The reason for the number difference is Flyer had different number designations for the same kind of lithography. The idea was that one number designation would be for 4 wheel cars and the other would be for 8 wheel. However, it is obvious that needs on the production line overrode car number considerations because often one will find 8 wheel cars with 4 wheel serial numbers and conversely.
