I'm guessing a damp coverslip, sitting on the ends of some cut tubes. But I have no idea what the tubes are. The absence of texture suggests synthetic.
rjlittlefield wrote:I'm guessing a damp coverslip, sitting on the ends of some cut tubes. But I have no idea what the tubes are. The absence of texture suggests synthetic.
--Rik
Hello Rik,
You are very close to solution of my riddle