Fidelity Research FR64 Black Limited Edition

Hello, i have a Fidelity Research Black Limited edition tone arm which came on my Denon DP-80 turntable i bought quite some time ago.
Anyways i cannot find any information what so ever on this particular tonearm, anyone have one or seen one before?
I posted on another forum with no success.
I am thinking i have something that is very very rare and possibly a one of a kind.
I was told from the person i bought it from which got it from a millionaire's estate that the person was friends with the owner of Fidelity Research and traveled to Japan often.
Anyone see one or have one?
Thank you.
Just like to point out that this is not a FX version and it also is the silver wired version with the vta on the fly option.
Are you able to post a photo?
It is hard to imagine a black FR-64s as they are made of stainless steel and to get a black finish on stainless, it needed to be black chrome which was a fairly new process in the late 70s.
Powder coating was even later than this which is why the 64fx was black anodised aluminium I believe?
I do not believe i have a way to post a picture here.
Ok, i posted pictures in my virtual sytems thread!
Ok that makes it clearer :^)
Tha fact that it calls it an FR-64 and not an FR-64S is significant I believe.
The 'S' postfix stands for 'Steel' in 'Stainless Steel' and without the 'S', I think it must be made of aluminium or titanium?
We need Dertonarm to confirm what this model is.
He is Mr. FR-60 :^)
Hi Mike, this is FR-64 black edition. A limited edition from 1980.
This is a fairly low numbered edition which was introduced when the FR-64 model was discontinued in favor of the FR-64s.
In the FR-64 the lateral balance weight is a round blank, while it is a hanging cylinder with the FR-64s.
There are other small alternations coming along with the FR-64s, but this is the most notable difference between the two "brothers".
A rare one - enjoy!
And no - the "s" in FR-64s does not stand for stainless steel or steel.
It just denominates the improved version following the FR-64.
The FR-64 is stainless steel tube too, just with a different finish ( a matte satin finish unlike the shiny polished in the FR-64s).
Thank you for the information!

Does the S stand for silver wiring? I am quite confuse. What is the performance different between 64 and 64s
Does the S stand for silver wiring?

No. The only advice for silver wiring is a sticker onto the Arm (silver inside leads) or onto the Box when this one has the identical Serial no. (matching box).
when you have two for comparison and one sounds definitely better (deeper soundstage, more headroom, more definition in the higher frequencies, fast Bass...) then that one is silver wired.
Voraratc, The "S" not only does not stand for "steel", it also does not stand for "Silver". Most of the silver-wired FR64Ss with which I am familiar have a decal on the arm tube that says "Silver inside", or similar words. (Mine does.) Other than that, Dertonearm has told us the difference between an FR64 and a 64S, see above. Dertonearm is probably the most expert in the Western world on FR64 and 66 tonearms.

When I first saw this thread a year or more ago, I wondered whether the black FR64 could have been an FR64fx. All of those were black, or all that I have ever seen. The fx is made of black anodized aluminum (I think) for a lower effective mass compared to 64S and 66S. They are readily available, if one has patience to shop. Apparently, it's not an fx.
I owned the FR-64 which was much lighter then 64 S. As
Dertonarm already mentioned with a round lateral weight.
I think that the arm-wand was made from aluminum which
should explain the lesser mass as well the black color.
It was a very good tracker. I got 90 microns with Ortofon
MC 30/II without any buzz from the right channel. The post
fix 'S' by the FR-64/66 means 'steel' as far as I know.
According to the German importer those are made from
'hardening steel' whatever this may mean. Anyway difficult
to produce so like the SME 1 (old steel version)
they are substituted for the aluminum kind which are easier
to produce.
Has anyone used 64FX ?