At the end of the seventeenth century, then, the guilds still existed, but had been subjugated and deprived of their principal rights. Behind the solid front which they still presented were ruin, desolation, and decay. (_b_) It is probable that the Crown in France allowed them to live and decline in peace because they supplied an easy method of directing commerce and industry; but it was also because they were fruitful sources of production. The Crown often disguised with fine phrases the _fiscal interest_ which inspired it; it is, however, easily discoverable in three different forms. Sometimes it confirmed, strengthened, and extended the monopoly of the guilds and made them pay for the favour; sometimes it sold to outsiders privileges which encroached on and compromised this monopoly; and finally, it sometimes threatened them, and only withdrew threats in return for ready money. The great ordinance of 1581 and the special edict of taxes of 1673 may be taken as examples of the first method. In 1581 the strengthening of the organization of the guilds by purging them of certain abuses and irregularities was the pretext cited; the king spoke and appeared to act as the great national justice of the peace; but the real object of the measure, which extended to the kingdom a system hitherto localized, may well have been the filling of the royal treasury into which fell a part of the matriculation fees paid by each new master. In 1673 trouble was no longer taken to find a pretext; the work was done by a financial edict, that is, by the establishment of a method of taxation. The guilds themselves encouraged these calls on their funds; indeed, in 1636, when France was in danger of invasion, they offered their wealth and their services for the defence of the kingdom. The second means, which consisted in creating privileges for which the guilds paid and by which the king's coffers were filled, was invented by Louis XI., who in 1461 instituted _letters of mastership_, which exempted those who bought them from the examination of capability and the expenses which the ordinary reception entailed. Soon the kings introduced irregularities into the masters' guilds on every possible occasion.[123] The blow could not miss its aim. If none were found to take these licences, the guilds hastened to buy them up to prevent the intrusion of new competitors. In vain they attempted to protest; the procedure became habitual and legal. The great ordinance of 1581 stated that the king would dispose of three letters of mastership in every town and every craft.