This might be the Komine build sister lens to the very desirable and rare Komine/ Vivitar 135"Close Focus" (Identified with ser nos 28XXXXXX and engraved Close Focus)
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/38791-vivitar-...ng-komine.html.
I'm just guessing here as Elicar did a lot of business with Komine it would appear.
Here is the 135s Vivitar branded and the makers which might help in your search:
Vivitar 135mm f/1.5 professional T-mount
Vivitar Series 1 135mm f/2.3 (made by Komine)
Vivitar 135mm f/2.5 TX (made by Tokina)
Vivitar 135mm f/2.8 (made by Komine)
Vivitar 135mm f/2.8 close-focusing 1:2 Macro (made by Komine)
Vivitar 135mm f/2.8 T4 & TX (made by Tokina)
Vivitar 135mm f/3.5 T4 (made by Tokina)
Elicar was also a marketer and not a manufacturer as I understand it. To further confuse things some of the branders changed the F numbers slightly as Elicar and others did with the 90mm i.e. f2.5 was the same as f 2.8.