This archive documents some of the acoustical characteristics of valuable and historically important guitars from the last 220 years. The archive contains guitars from Torres, Pages, Garcia, Simplicio, Contreras, Conde, but also from contemporary guitar makers such as Marin, Bellido, DeVoe. More than 60 guitars are documented, most of them classical Spanish guitars, flamenco guitars and romantic guitars. Most of the guitars are from Spain. Measurements were done with professional minimal equipment in the places of the private or public collections, with the upside of access to valuable instruments, and the downside of compromises in terms of a limited signal matrix and some impairment caused by the acoustical environment. The two-channel vibro-acoustical measurement at the bridge captures the two main degrees of freedom, while three more channels sparsely capture near-field radiation. This matrix is sparse, but good enough to analyze matters of symmetry/asymmetry, top plate mobility, and radiation efficiency. While early reflections and reverberation are unlikely to affect vibro-acoustical measurements, they are likely to affect the near-field measurement. Expected impairments are controlled by in-situ avoidance of early reflections from the floor and by clearance from reflecting walls. Documentation of wall distances allow adequate post-preparation of short reflection-free impulse responses. The documentation finally serves for archiving acoustical fingerprints of important guitars, which are likely to deteriorate eventually even under thoughtful preservation. It also serves analyses of individual guitars and, furthermore, analyses of the acoustical evolution across epochs of guitars. PACS 43.75.Gh File Overview Title_Abstract.pdf title and abstract Method.pdf documents method and measurement setup List_of_guitars_description.pdf documents the identification, provenience, material, type of guitars List_of_guitars_physical_measures.pdf documents geometry and other ohysical properties Comments.pdf few general and particular comments on mobility plots AcousticLabHAW_Hamburg.jpg documents the measurement venue according to the list of guitars Archive_Romanillos_Siguenza.jpg dto. Avalle_Studio_Granada.jpg dto. CentroDocMusAndalusia_Granada.jpg dto. ClassRoomSchool_Freiburg.jpg dto. ForumFinkenau_Hamburg.jpg dto. 260 x *.jpeg documents individual measured guitars in their setups 63 x bridge_mobility_g*.jpeg documents the bridge mobility of 60+ guitars (see list above) bridge_mobility_legend.jpeg legend for the bridge_mobility_plots batch_extract_bridge_mobility_archive.m MATLAB code, batch file, to be called by create_fig_archive.m MATLAB code, batch file, for the generation of transferfunctions qualified_selected_impulses.mat original, qualified raw data, organized as simple MATLAB matrix Instrumentation_DYTRAN_5800SL.pdf data sheet of impulse hammer Instrumentation_HEIM_DIC6 data sheet of A/D frontend Instrumentation_KISTLER_8778A500 data sheet of acceleration sensors Instrumentation_ROGA_MI17 data sheet of microphones