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there should be a Sears item number (not serial) stamped into the underside of the bottom bracket shell
it will begin with a three digit prefix which is a code indicating the actual manufacturer
for example "502" is Murray and "503" is Puch/Steyr of Austria
the combination of the Fichtel & Sachs Komet hub with a one-piece chainset is somewhat odd - sending mixed messages with respect to national origin
here is a forum post from the owner of a Murray built cycle which came from the factory with a Fichtel & Sachs Komet rear hub; so evidenlty there was a period in the late 1950's to early 1960's when they employed them
https://thecabe.com/forum/threads/gr...06/post-924363
the "36" marking on the subject hub is a plausible reverse year marking, i.e. 1963
the "161" could indicate the day of the year (wylde speculation
)
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EDIT:
did some additional checking
the letter stamped into the hub shell indicates the year of manufacture
the letter H on the subject hub indicates the year 1965
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