I have a Lionel train set, no. 1507 WS. It was a Christmas gift sometime around 1952-1954. I have the original boxes and the original outer box that the set came in. Can anyone tell me how the individual boxes were placed in the outer box? I have tried many different configurations but haven't been convinced that the items are in their proper place.

Also, my recollection is that when we first used the train, there were tablets that were dropped in to make the smoke. In the intervening years, while the set was in the care of my brother, a tube of Lionel smoke liquid was substituted for the tablets. The liquid ( a couple drops at a time ) seems to work but I want to make sure that I'm not harming the locomotive.