Possible news, good and bad

Our contractor did the major demolition of the old kitchen today.  What may be good news: it looks to me that the house’s original fir floor may be intact under several layers of other flooring material. What may be bad news: my untrained eye wonders if the loose, flaky underlayment below the lowest layer of linoleum could be asbestos.  For both possibilities, only time will tell.
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