steam piston?
tags | sf bayarea berkeley tilden tildenpark california steamtrains train trains steam canon eos20d lenstagged 85mmL 85mm1.2L primelens prime
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/p/26047/refill.html
Dave Bullock / eecue
photographer, director of engineering: crowdrise, photojournalist, hacker, nerd, geek, human
tags | sf bayarea berkeley tilden tildenpark california steamtrains train trains steam canon eos20d lenstagged 85mmL 85mm1.2L primelens prime