Abel flash point apparatus
1982
Pensky-Martens flash point apparatus
ISL automatic Pensky-Martens closed cup flash point apparatus
1997
Abel-Pensky's flash point apparatus. No.1534.
circa 1911
Pensky-Martens flash point apparatus made by Sommer and Runge
Flash Point Apparatus, 1975-1982
1975-1982
Abel's petroleum testing apparatus
Pensky-Marten's Flash-point Apparatus, with thermometer and components
1910-1912
Flash-point apparatus, c 1870.
1870-1911
Abel's Flash Point Apparatus, London, 1910-1912
1910-1912
Gray's flash point apparatus
1897-1927