Authentic brick from 221b Baker Street. [London:] Abbey National Building Society, [ca. 1980s]. Brick in the original collectible box with open area on top, wherein one can see the ?221b? stencil on the brick, issued by the Abbey National Building Society, approximately 9 ? x 4 ? x 3?. Some wear, scuffing to original box. A near fine example of this unusual piece of Sherlockiana. In the 1980s, 221b Baker Street was part of the Abbey National Building Society headquarters. When they decided to re-build the offices, several of the better bricks were set aside and sold to collectors in specially designed boxes, with the proceeds going to charity.