1969 Power steering box covers

[WaltZ]

Would a 1969 01C build power steering box cover have the Highway S Logo or no logo.
Was told that the S logo didn't appear until 1970, but yet I see many, supposed originals with the S logo.
was the 5686555 raised molded or stamped.
so much conflicting info out there my heads ready to explode.
or if there is an original picture of one, that would be great.
Thanks in advance.