This is an excellent example of the Wrenn "N" Micromodels Catalogue Number 405 "Mineral Wagons" (x2) in grey, running number B554430. Issued by Wrenn, Basildon in 1968, these were also available in Brown or Grey as individual wagons under Catalogue number 407.These however came later from 1973.

The wagons come packaged in the standard Wrenn Micromodels cardboard box with profiled polystyrene insert.

Overall Condition is "good" for their age. 

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