The Remington Mark II was a Torpedo 18b (or 18s) in a plastic shell rebranded for the American market. To my knowledge, it exists in three versions, spanning 3 to 5 years of production (if it went from 1964 to 1968). They all come in an oddly Olympia-like case made in West Germany and have annoying Remington core spools.
The first date, 1965, is a guess. The two later Mark IIs have been dated from the date stamp inside the ribbon cover. This post compares a few points showing the changes in the exterior finish and the change from Remington Rand to Remington and finally to Sperry Rand as the manufacturer.
|1965? - 1345954 (West Germany)|
|September 1966 - 819493 (West Germany)|
|August 1967 - 1377313 ("Holland")|
I would like to thank my friend Scott for letting me use his camera to photograph his two Mark IIs.