It'a a fairly standard shop counter display cabinet, with pediment saying 'Henderson's of Edinburgh Cakes and Biscuits' (or something similar). Gold writing on black glass. The sides of the cabinet have etched in them Henderson's Cakes, etc. Here is a picture of a similar one, but this hasn't got the writing on the side, nor the word Ediinburgh on the pediment. Hope it helps!! Many thanks.
