1/12th Scale Dolls House Mahogany Fireplace. Prepare for winter with the wonderful mahogany fireplace from Streets Ahead. If you're preparing your scene for the colder months, look no further than this fireplace. So, bring your living room to life with this mahogany treasure. For 1:12th scale dolls houses. Not suitable for small children. From Streets Ahead. 1:12th Scale. Collectors' Item. Part of the Hobbies Dolls House and Miniatures Boutique. Detailed scale model for adult collectors, Not suitable for children under 14 years. Images are for illustrative purposes. Characters and accessories pictured may not be included.