It is clear from these lists that instrument-makers were becoming more highly specialised as time went on, and the prices charged by famous makers like Adams must have been beyond the reach of the ordinary merchant seaman.
Kolu luhlu kuyabonakala ukuba abakhi zixhobo babezibalula ngokunzulu ngohamba kwexesha namaxabiso ayebizwa ngabakhi bodumo, abanje ngoAdams, ayengafikikileleki koomatiloshe abangenamali (abangamanga epokothweni).