Founded in Ballarat, Victoria in 1888 by Eleanor Lucas, by the mid-20th century, the Lucas Clothing Factory employed hundreds of local workers (popularly known as the "Lucas Girls"). The company was a pioneer in Australian textiles, producing the country's very first knitted nylon tricot and manufacturing luxury Vanity Fair lingerie under license for the domestic market. As Lucas shifted from utility wear and intimate apparel into upscale daytime and evening wear during the 1940s and 1950s, they launched specialised fashion lines. The Jill Heriote line was created as their signature high-end ready-to-wear and cocktail range. The line became widely celebrated for its elite tailoring, structure, and use of both premium local and imported fabrics Designers working under this line, such as Eve Ogilvie, translated sophisticated European aesthetic trends directly to the Australian market..This garment represents a pinnacle of mid-century regional Australian fashion manufacturing. Operating from Ballarat, Victoria, E. Lucas & Co. utilised elite local designers to compete directly with imported European couture houses. The gown showcases the firm’s pioneering expertise in fine, permanent textile pleating, applied here to luxury pure silk rather than everyday synthetics.This bias-cut silk and lace cocktail dress sold under the label 'Jill Heriote' for the House of Lucas, Ballarat, features a narrow waist and a dramatically flared skirt. The overdress is constructed from intricate, black imitation Valenciennes machine-made lace. It layers over a cream synthetic underdress that peeks through the openwork and extends structurally past the hemline. The bodice is designed with delicate shoulder straps leading into a sweetheart neckline. Its form-fitting structure showcases panels of finely pleated black silk, creating texture across the bust. Below, the full skirt alternates between sheer black lace segments and contrasting horizontal bands of smooth black silk.Label" 'LUCAS / Jill Heriote / in pure silk fabric'jill heriote, house of lucas -- ballarat (vic.), fashion -- 1950s, cocktail dresses, manufacturing -- ballarat