Physical description

Sheet aluminium sign, red metal primer on rear of, off white painted on front, with red and black painted with this sheet steel(?) attachments, riveted to aluminium and folded so that a sheet of paper or prepared numbers could be slipped in. Used to indicate cash shortages of Conductors for the last week and lowest week for the year. $ sign in block paint, otherwise in red paint. Appears to have been set up for decimal currency. Drilled with holes in each corner. Holes have been countersunk. Used at depot probably in revenue or pay in office.