steam piston?
tags | sf bayarea berkeley tilden tildenpark california steamtrains train trains steam canon eos20d lenstagged 85mmL 85mm1.2L primelens prime
/p/26049/steam.html
/p/26047/refill.html
Dave Bullock / eecue
photographer, engineering leader, nerd
tags | sf bayarea berkeley tilden tildenpark california steamtrains train trains steam canon eos20d lenstagged 85mmL 85mm1.2L primelens prime