There are three variations:

Variation A: Has the "LIONEL LINES" printed on the chassis in expanded bold serif lettering and beneath it: "WT-375,000-2- 18 NH" with the hyphens around the "2". Late 1954 production.

Variation B: Has the "LIONEL LINES" printed on the chassis in thin condensed serif letters and beneath it: "WT-375,000 2 18 NH" with one hyphen in back of the "WT". This variation was an early 1954 production.

Variation C: Has the "LIONEL LINES" printed on the chassis in thin condensed serif letters and beneath it: "WT 375,00 2 18 NH" without the hyphens. This variation was produced from 1952 to early 1954.
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