50. H69.38.431 Object number: H69.38.431 Object name: diagram; envelope; map Date made: Dec. 13, 1882
51. H69.38.432 Object number: H69.38.432 Object name: contract; diagram; document; envelope; I.O.U.; memo; notes; order; receipt Date made: 1882, 1884 (see remarks)
52. H69.38.433 Object number: H69.38.433 Object name: calculations; diagram; document; envelope; letter; notes Date made: 1883,1885
55. H69.38.1183 Object number: H69.38.1183 Object name: diagram; envelope; survey Date made: July 11, 1888
56. H69.38.1418 Object number: H69.38.1418 Object name: blueprint; diagram; document Date made: July 1896