Nhc: asbestos in Lino adhesive / tiles

[Viva_Palmeiras]

Anyone familiar with identification of this these tiles will date back to 1950s concerned about the black stuff

[oldbutdim]

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Anyone familiar with identification of this these tiles will date back to 1950s concerned about the black stuff

Get them tested by a specialist company - many tiles of that era do, although quite low concentrates.
Don't disturb them until you get results!