375x500 | 148K | jpg free download |
120x160 | 56K | jpg free download |
150x200 | 61K | jpg free download |
576x768 | 279K | jpg free download |
1728x2304 | 1M | jpg free download |
A rather large old steam engine used to drive machinery in a mill or factory, beside a canal. the two balls are part of a govenor: as they spin faster they rise, but as they rise they close a valve which in turn throttles the steam conimg out and slows them down, so they end up spinning at a more or less constant rate.
375x500 | 148K | jpg free download |
120x160 | 56K | jpg free download |
150x200 | 61K | jpg free download |
576x768 | 279K | jpg free download |
1728x2304 | 1M | jpg free download |