A recent article showed how Shakleton was forced to get the Endurance because it was cheaper than the bigger, stronger icebreakers of the time. Only £14k. He had doubts about the ships strength to cope with pack ice, and it turned out he was right. Still; there wouldn't be that epic trek across the Southern Ocean if he'd been able to afford a bigger boat.
I thought the first picture was Endurance but it turns out to be the Cutty Sark, SS Great Britain has coal fired steam though. I'm building a model of Endurance, will get back on it during the winter months.

