private industry automotive headquarters freienbach switzerland owner privately owned website www.glass.co.uk www.glassbusiness.co.uk glass s guide is the leading british motor trades guide to used car prices often referred to in the trade as the bible . monitoring car values for over 80 years since 1933 glass s guide has reflected how cars have become increasingly affordable . for example in the 1930s the 145 list price for a ford 10 de luxe including 5 for an optional sliding roof was the equivalent of almost two years salary . today a ford mondeo 1.8 i lx with a list price of 14 465 represents the equivalent of just seven months salary for a person earning the uk average wage . contents 1 william glass 2 glass s history 3 references 4 external links william glass edit william glass was born in scotland in 1881 and was an engineer by trade . as well as publishing the first guide to used vehicle values glass had an innovative and enquiring mind and made a number of inventions including the portable hydraulic jack the electric switch off kettle the self filling fountain pen and the through the propeller machine gun firing mechanism . the founder of glass s guide also manufactured cars under the firefly marque for a short period of time in croydon . glass s other innovations included the first motor auction and the first uniformed attendants at petrol filling stations . glass s history edit william glass founded glass s in 1933 and published the first glass s guide to car values in july that year . the company expanded into commercial vehicle motorcycle and caravan values in the 1950s and 60s and today provides customers with information in print electronic and online formats . 1930s in 1933 william glass first publishes glass s guide to car values which quickly becomes the bible of the uk motor trade 1950s hanns w. schwacke applies the same idea in germany becoming the first of its kind in continental europe . 1960s hanns w. schwacke expands the business in europe under the international brand eurotax . glass s launches used valuations guides for commercial vehicles and motorcycles in the uk . 1970s the first estimation system including parts prices and labour costs for all makes and models is launched . 1980s glass s introduces the pc version of glass s guide and acquires editions professionelles glass sarl epg france . eurotax launches the autowert workplace software which becomes the standard for over 50 000 users across europe . 1990s hicks muse tate & furst the private equity group acquires glass s information systems ltd in 1998 and eurotax ag in 2000 . the companies are merged to form eurotaxglass s ag registered in freienbach switzerland . 1 2006 candover buy the business from renamed hm capital for 480 million 2 references edit investegate candover investments candover acquires eurotaxgl . investegate.co.uk . 17 may 2006 . retrieved 30 january 2011 . candover buys eurotaxglass s ; keeps management in place news auto industry external links edit glass s trade website glass s consumer website eurotaxglass s corporate website retrieved from https en.wikipedia.org w index.php title glass % 27s guide & oldid 672431185 categories 1933 establishments in switzerlandcompanies established in 1933automobile magazinescompanies of switzerlandprivate equity portfolio companieshidden categories use dmy dates from june 2015 navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages deutsch edit links this page was last modified on 21 july 2015 at 14 17 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view