Desi Coltrane posted the Boston 1969-01-26 bootleg in the “John Henry Bonham..” Facebook group two weeks ago: saying Bonham played two bass drums! This is the most convincing snippet to me!

Listen to the full Pat’s Delight solo 1969-01-26: there’s much more double bassing going on!

Bootleg from the great Led Zeppelin Boots channel
   • Led Zeppelin - Live in Boston, MA (Ja...