The numbering system Ford used for Lincoln parts had an H identifier. The 1 in 16 is for 1941 The 6 in that number is likely an engine identifier form parts designed in 1941. The Ford numbering system was 11 for a 1941 221 CID engine and 19 for a 239 engine. The Lincoln V12 engines were manufactured in three different displacements with the last one being the 306 from 1942 with a gap to 1946 and later after the war. The numbering system changed after the war in 1951 so it changed to an alpha prefix with a decade code such as A for the 1940s, B for the 1950s, and so on. B6 would be 1956. My 1951 Mercury cars have a lot of Lincoln part number prefixes in the R10 overdrive transmission parts due to the initial development on the Lincoln cars.
The 16H part number prefix is pre 1956 when the change to 12-volt happened so it is likely designed for 6-volt systems. The King Seeley systems were current pulse systems beginning in 1936 and running well into the early 1960s. Some of the 12-volt systems likely had a voltage regulator in the line that was also a current pulse based system, to lower the voltage for the instruments. I don't think the 1956 systems used a voltage regulator but they did in 1957 and later cars.
