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I am sorting through my son’s old Lego sets and don’t know which this belongs to. The orange polygon pieces are similar to some Nexo Knights sets.

2 Answers 2


This is the tail end section of 70674-1 Fire-Fang.

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Found by searching for sets containing "Plate 2X4 cross-coupling".


There are only 10 sets containing that piece in trans-orange, and none of them resemble your assembly. This must be the result of some free play using parts from several sets.

  • 2
    TIL there are two versions of "Roof rock tile 4X4 W. angle": 6120910 made in 2016 and an updated mould, 6174064 used between 2019 and 2020
    – zovits
    Commented Nov 5, 2023 at 11:50
  • 1
    There had to be a good reason that Ivan would have missed this. I love this attention to detail. Bravo, bravo.
    – chicks
    Commented Nov 5, 2023 at 15:07
  • 1
    I didn't look hard enough, and I just assumed there was only such a trans-orange part. My apologies. Commented Nov 5, 2023 at 20:26
  • I would have assumed the same. But the overall quality of the sub-assembly (neatly arranged dishes, arches, ...) was more like that of an official model instead of a kid's MOC, so I tried to find the set onto which the orange parts were grafted as "aftermarket" upgrades - and that's how I discovered this.
    – zovits
    Commented Nov 6, 2023 at 8:24

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