The DVD-ROM represents a substantial extension of the CD-ROM "Historical trade marks" for the building industry. It contains 250 historical FIGURE SIGNS (guild coats of arms, guild symbols), GUILDING SIGNS (guild coats of arms, guild symbols), CRAFTS SIGNS (coats of arms, craft symbols) and VOCATIONAL STAFF SIGNS (professional signs, professional symbols) of the professions stonemason and stone sculptor, Bricklayers, carpenters, roofers, road builders, well builders, plasterers, stove and air heating installers, painters and varnishers, upholsterers, chimney sweeps, furnace and chimney builders, draftsmen, architects, brick burners, miners and firemen.

For the occupations natural stone mechanic, concrete block and Terrazzohersteller, concrete and reinforced concrete farmer, stand farmer, channel farmer, warming, cold weather and noise insulation, dry construction mechanic, building sealant, wood and building protector, tile, plate and mosaic layer, screed layer, Bodenleger and construction equipment leader there is a particularly developed indication in each case.

One finds old guild signs of:

Esslingen, Heidenheim, Karlsruhe, and Freiburg im Breisgau in Baden-Württemberg,
Schönberg in Mecklenburg-Vorpommern,
Drebkau and Potsdam in Brandenburg,
Gardelegen and Magdeburg in Saxony-Anhalt,
Gotha in Thuringia,
Göttingen, Helmstedt, Holzminden and bath Gandersheim in Lower Saxony,
Karlstadt, Pfreimd, Aschaffenburg, Regensburg, Augsburg and Nuremberg in Bavaria,
Marburg and Frankfurt/Main in Hessen,
Worms and Mainz in Rhineland-Palatinate,
Dresden, Torgau in Saxony,
Lübeck in Schleswig-Holstein,
Cologne in North Rhine-Westphalia.
Berlin,
Hamburg.
There are also guild marks of:

Vienna, Admont, Eferding, Linz in Austria,
Bern and Basel in Switzerland,
Ghent, Liège and Bruges in Belgium,
Lützelstein and Strasbourg in France,
Bartschin (Barcin), Greifenhagen (Gryfino) and Danzig (Gdansk) in Poland,
Reval (Tallinn) in Estonia,
Florence in Italy,
London in Great Britain,
Amsterdam in the Netherlands.

All guild signs are available in high-resolution JPG and PNG format, many additionally in four vector graphic formats (AI - Adobe Illustrator from CS2, CDR - CorelDraw from XI, SVG - Inkscape, XAR - XaraXtreme) for professional use. Craft marks, where it makes sense, are plotted.

Pictures and texts about the history of the professions as well as a description of modern apprenticeship training with reference to old job titles round off the whole. Modern, trademark-protected guild marks are described verbally, indicating the conditions under which they may be used and where they can be obtained.