Lyon & Turnbull present a collection of works by Charles Rennie Mackintosh in their forthcoming Design Since 1860 auction on 16 & 17 April 2025 in Edinburgh. Here are three examples of those on sale. https://www.lyonandturnbull.com/auctions/design-since-1860-828 ‘BOULETERNÈRE’, CIRCA 1925Estimate: £100,000 – £150,000 Description: watercolour with traces of pencil, signed with