Turn of the century (as in 190_) garb.
black tie, gentlemen.
Yes, I understand that it will be a Monday evening.
However, the 18th will be the 100th anniversary of the Great Earthquake and Fire of San Francisco. I have all intention of going down to Lotta's Fountain and drinking Bloody Marys @ 5:12 AM, and you may join me in this if you wish.