Good news for the engine collectors who recently asked for the oldest builds of Stockfish: What's lost is found at last.
Hopefully, Aart Bik has come to help and kindly provided me with these ancient oldies. We are starting with 1.X today. I'll be sharing more soon, mostly earliest 2.X versions. Enjoy the past...
Stockfish 1.8 for arm7: HERE
Stockfish 1.9 for arm7: HERE