Lots of finds exposed by melting ice at a mountain pass:
https://www.theguardian.com/science/2020/apr/16/spectacular-artefacts-found-as-norway-ice-patch-melts
https://www.cambridge.org/core/journals/antiquity/article/crossing-the-ice-an-iron-age-to-medieval-mountain-pass-at-lendbreen-norway/F6C3FDBC94AD652EF4D2E79ED1697F1A
For the tunic mentioned, found in 2011, see:
https://glacierhub.org/2018/02/14/reconstructing-norways-oldest-garment-tunic-lendbreen/
https://www.academia.edu/35628286/Reconstructing_the_Tunic_from_Lendbreen_in_Norway._Archaeological_Textiles_Review_no._59_2017_p._24-33_SFA_Center_of_Textile_Research_Copenhagen
QuoteDue to uneven exposure to the sun, the surface colour of the body appears patchy, but closer examination reveals that the fabric is deliberately and evenly mottled. This effect is caused by the use of two light and two dark brown threads made of naturally pigmented wool alternating in one thread system ...
I look forward to seeing your representation of that in your 15mm Early Northern Barbarian army...