Experts at Cambridge University confirmed it.
It is many millions of years old. I had no idea you could get fossils inside flint.
Simple QRP projects, 10m, 8m, 6m, 4m, FT8, 160m, WSPR, LF/MF, sub-9kHz, nanowaves and other random stuff, some not related to amateur radio.
My beacon was turned on before breakfast. UPDATE 1241z: Spotted by 4X1DA (3592km) and EA8BFK (2880km). F2?