The Type Heritage Project [THP]: Elmo Commercial Specimen, Bruce Nov 1872
The Type Heritage Project [THP]: Elmo Commercial Specimen, Bruce TF 1901
The Type Heritage Project [THP]: Elmo Patent Speciment, Bruce No. 1530 (1872)
The Type Heritage Project [THP]: Elmo Patent Affadavit, Bruce No. 1530 (1872)