Nine Roman lamp profiles ... D.B ... 81-7 81-7 Xerox Printing Ink ... 1957
Lamps ... AMS Horizontal (normal)
Profiles of Roman lamps ... PD 930 AMS Horizontal (normal)
Rearranged Roman lamp profiles from PDs 926-931 ... D.B ... Dirty Cartridge Paper Drafting Ink ... 1957
Mixed ... H. Α. Thompson ... 591 788 ... 1933