i) Improvement in the appearance of walls, etc., ii) Use of available materials, to obtain optimum economy.Shows brick-backed ashlar masonry. The ashlar may be rough tooled. It is preferable to use the height of ashlar as a multiple of brick thickness plus masonry joints so that coursed masonry is obtained.Cement mortar should be used for construction. Bricks should be laid in proper bond. Alternate courses of ashlar may be headers.Under each projecting course of ashlar, header bricks should be used.Shows the facing of stone tiles. The backing consists of laid in courses with proper bound. This type of construction is quite common, since stone tiles may be of marble stone.If stone slabs are used, they are finely dressed and are used in big panels. It is preferable to use metal clamps to connect the facing and backing masonry of the wall.Shows a rubble-backed brick masonry. It is commonly used at locations where rubble stone is available in large qualities, but ashlar is not available.In that case, the facing of the wall may be done in bricks laid in courses. Each alternate brick course consists of a quoin header.