Regarding things like oil filters. They were offered by the dealer or purchased/installed by the owner. This type of item is not referred to as "original" it's referred to as "era correct"......correct style.
The excellent Tech Tip info begins in 1933. AC Spark Plug Company had an oil filter patent filed 1927, granted 1930.


From the web:

First U.S. oil Filter for commercial use in automobiles was Purolater (Pure Oil Later). Invented 1923. Granted 1929.
In 1924 first full pressure lubrication system, with an oil filter, became available on a high volume production engine.

The early oil filters used on cars were low performance and not really effective.

Many successful and popular engine designs (VW, FIAT) did not use any oil filters until 1970's.

Some engines used oil filters ONLY in "by-pass" and not in main flow of pressurized oil.

The first use of a full flow oil filter on mass production vehicles occurred in 1946.


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