16a Transport Trailer

[Idris]

None of the NAMC’s “Catalog of all Series Matchbox Models” (second edition), the AIM's “1-75 Series Regular Wheels” catalogue (second printing, 1983), Stannard, Houghton, or Leake ("Concise Catalogue of 75 Series Matchbox Toys by Lesney" (4th edition, reprinted 2006)) lists any variation not already catalogued by Nick.
U.K. Matchbox examined the model in Vol. 1 no. 8 (Oct. '77) p122 but did not record any variations not already identified by Nick.

[Diecast]

There are at least the colour variations:
a) brown
b) light tan
c) darker tan
Antonin