Cambridge University: MS-RGO-00014-00051-000-00358
Cambridge University: MS-RGO-00014-00044-000-00197
Cambridge University: MS-RGO-00014-00048-000-00643
Cambridge University: MS-RGO-00014-00044-000-00307
Cambridge University: Azimuth compass by Walker
Cambridge University: MS-RGO-00014-00039-000-00453
Cambridge University: MS-RGO-00014-00005-000-00103
Cambridge University: MS-RGO-00014-00024-000-00451
Cambridge University: MS-RGO-00014-00030-000-00357
Cambridge University: MS-RGO-00014-00058-000-00203
Cambridge University: MS-RGO-00014-00031-000-00630
Cambridge University: MS-MM-00006-00048-000-00368