100 Years of Cremorne Manor. How to Celebrate

I'm planning our next year party, which will be a big one. the Manor will be 100 years as a going concern and I think it's something to celebrate. Only thing is I'm not sure how. I was thinking of a 1910's party and also selling rooms for the oldest price we could find for the hotel which is 3 pounds 3 shillings. (not sure of the conversion for that one) but i'm open to suggestions. please contact me or post a comment if you have any ideas about this. I've added a couple of photo's of fashion from the turn of the century which would be great for a party.