Ephemera › HS 3820 - Invoice from Robert Graham, Slate & Glass Merchant, 45 North Castle Street, Edinburgh 1905 Image 1 of 1 HS 3820 - Invoice from Robert Graham, Slate & Glass Merchant, 45 North Castle Street, Edinburgh 1905 £28.00 Now includes telephone number. Works to 112 George Street. Add To Cart Added! Now includes telephone number. Works to 112 George Street.