https://manpages.ubuntu.com/manpages/focal/man7/posixoptions.7.html
Ubuntu Manpage: posixoptions - optional parts of the POSIX standard
optional parts of the POSIX standard
optional partsof theubuntumanpageposix
https://londonon.craigslist.org/pts/d/ilderton-flathead-ford-and-meteor/7917773992.html
1949 1950 flathead Ford and Meteor optional HiFi 6 volt radio - auto parts - by owner - craigslist
Excellent appearance inside and out. Made by Sylvania Electric for 1949 and 1950 shoebox Ford and Meteor. Has lovely original chrome plating. Impossible to...
https://londonon.craigslist.org/pts/d/ilderton-optional-steering-wheel-hub/7923401925.html
Optional steering wheel hub .... Corvette, Chevelle, Camaro, Nova - auto parts - by owner -...
Genuine original GM steering wheel hub 3937896 in excellent condition. NOT a lightweight modern Chinese reproduction with inferior metallurgy. Includes all six...
steering wheel hub