Write about an art gallery located in a historical blacksmith house (100-year old architectural). location: the USA, Los Angeles County, San Gabriel city, San Gabriel mission district neighborhood. 100 years ago, this architectural house used to be a blacksmith, but now occupant is an art gallery, so need to write a newspaper article to feature old architectural and history, its culture and people, and its connection with a present art gallery, includes some sales and marketing promotion on current occupants.