In addition to providing a means of small savings for subsequent depositing in a bank or building society account, these two images show that book safes appear to have been issued for consumers to save for their electricity bill. The safe issued by the Yorkshire Electricity Board (No 4 sub-area) was manufactured by Pearson-Page-Dewsbury Co Ltd, Birmingham. The safe made by the Automatic Recording Safe Co Ltd, of London & Birmingham was issued by the Leeds Electricity Department