Hi I’m willing to swap a Rudall Carte F Flute 6 key in Cocus for a Rudall Carte F flute in Ebonite.
I’d forgotten I’d got one. Well, actually, I’ve got a matching pair of ebonite Rudall Fs. I think that, when Mr TheFlute and I looked 'em over, we thought they were high pitch, but they’re not all that high. They don’t have tuning slides, so the only tuning possible is within the span of the joint itself. One of them plays OK, but both need re-pads and probably re-threading really. Nothing else - well, they’re ebonite, aren’t they?
Got a picture, David? Has yours a slide?
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Thanks David. Looks nice! Can you also tell us the sounding and overall lengths in mm, please?
I have some (poor) photos of Ben’s Ebonite ones which I’ll post later - need to upload them etc. and no time right now.
OK, here they are. Sorry for the rubbish photography - the day I did them it seems both my phonecam and my eyes were playing up! I think Ben may come up with their sounding length in due course…
I have measurements but they are inches as the only tape i have in the house is a fold up one for measuring waist sizes 
the overall length excluding cap is just over 19 inch and the length from the centre of the embouchere to the middle of the first tone hole is 7" approx
the flute is 3/4 of an inch longer than a Hawkes crown a/z equivalent
The flute requires a couple of pads and like your pictures their is a chip in the tennon i will load photos up first chance i get.
Calum Stewart has played this flute im sure he can do an appraisal on it, as he told me he would buy if i was selling.
David
Ben, measurements? David, photos and sounding length?
Ok here goes in mm total 489mm ring to ring 180mm from centre of blowhole to center of first tone hole the serial is 9006 i think
Cheers, David, but can you add the “sounding length” - centre of blow hole to very bottom of assembled flute, slide closed? Is more use than the distance to 1st tone-hole.
sounding length from centre of blowhole to end of flute 417 mm approx
OK, I’ve now badgered the measurements of the Ebonite ones out of Ben…
Overall length (including crown) 495mm
ditto excluding crown (external ring to ring) 488mm
Sounding Length 415mm
Embouchure centre to 1st tone-hole centre 177mm
“C#-Eb” 415mm
So, very similar to your cocus one with slide, David… I’d presume that will play at 440 with the slide about half extended, then, but is HP with it fully closed.
As I cannot pitch-test the Ebonite ones myself at nearly 100 miles away, I can only say that they are definitely High Pitch. FWIW, my 8-key RC&Co F flute has almost the same emb-1st tone-hole length (178mm) and a slightly longer C#-Eb length (203mm) - and that appears to play (with my embouchure/playing style) at c A=453-5Hz with its tuning slide fully closed. When we tried that wooden head on the Ebonite bodies a few months back, they also played quite acceptably at 440 with the tuning slide extended about 20mm, as my 8-key does, but of course their own slide-less heads do not permit of more than a couple of mm flattening. On the evidence available, one can say pretty certainly they play in the normal range of old English HP, in the A=mid-450s Hz.