I thought they recently "went out of business" and no longer exist.
Bourget Bros. would be very surprised to hear that. You may be
thinking of Grieger’s in Pasadena, which did go our of business
several years ago. Bourget is at the same old location in Santa
Monica as far as I know but it’s easier to visit them on-line:
You can find their wax pattern catalog under Casting Supplies.