Good morning, and Happy New Year;
Pentax Pete, thank you for posting the nice photographs.
I do recognize the name Fujita, but I do not know anything about the 4.5/135mm lens.
I do have a Minolta ROKKOR-TC 4/135mm preset lens with Minolta SR mount that always impressed me with how slim and light it is, It takes 47mm filters. It does seem that a lot of our camera makers have been making a lot of nice lenses over the years. Just finding one that is still in good condition today seems to be the challenge.
Enjoy;
Ralph, Latte Land, Washington