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G'day gents
scored this piece of rock at the annual antiques market the other day
obviously a coticule - maybe 'la dressante au bleu' or 'la grosse blanche'?
I flattened the BB side which is very usuable
the coti however is extra hollow so no idea what to do with it
can it be used in the current state or should I have it flattened ?
If I should flatten there won't be much left of the coti surface...
any advice from you guys please ?
cheers
BartAttachment 292029Attachment 292030
Nice example! I would leave it as it is and simply use the blue side. Flattening the coticule side you would loose so much material and only have a very thin layer left if you manage to level it down either. Just take it as a piece of history and think about the widely use it had in the past. With a bid of experience you may sharpen some knifes on the coticule side also in the present state. Not useable for razors though.
Regards Peter
Thank you Peter
I may use the piece to create slurry on my Veinette
regards BartQuote:
Originally Posted by hatzicho
Maybe a stupid idea but you could cut it in half at the low point and get a pretty thick wedge piece?
Hello Bart, Good to see you here!
~Richard
Hi Richard , scored some more at the annual antiques market last week - will post more as I have no idea what they are - best wishes BartAttachment 292058Quote:
Originally Posted by Geezer
Great idea - never thought about that !
cheers BartQuote:
Originally Posted by tintin
I've recently purchased 2 vintage labeled coti's that were dropped, worn and unusable. Sawed them up into slurry stones and I'm happy as a clam. I can use the slurry on anything and enjoy the coti goodness of a really nice stone. I've been using them alot.
If you had the patience, you could lap (saw, initially) that into a useable coti. Just because it will be very thin, does not preclude it from being a great, functional coti. Sure, it would be thin, but it is a rock. A few mm will still last a long time. Just my humble opinion.
By the way, great finds and I can't wait to see what the rest are.
If you're going to go that route, I'd cut off the thick ends first for slurry stones. No sense wasting it down the drain, and a little shorter length won't hurt anything usability-wise.Quote:
Originally Posted by Scipio
Here’s another idea, just smooth it out and make that hollow as uniform as possible. Then use it for microbevels and wedges.
Alex Gilmore (Japan Stone) once made a hollowed hone that looked a lot like yours. He made a fixture to grind the stone uniformly. The idea was to be able to hone wedges without tape. I had the stone for a while and measured the radius of the hollow to be a little over 1 meter, about 42” IIRC. The math showed that the hollow would increase the bevel angle by about 1 degree, or one layer of tape.
The nice thing about this strategy is that you don’t lose much stone, you just need to find a use for it as-is.
Cheers, Steve
Thanks Steve - interesting idea - this could be the ideal outcome... cheers BartQuote:
Originally Posted by Steve56
You have to tell me where you get that kind of loot!!!Quote:
Originally Posted by bartds
Hi , just lucky I guess - an elderly woman selling old chisels and scissors - one cardboard box loaded with hones was tucked away- must have been at least 30 pieces - all vintage - picked the nicest naturals - should have made a pic ( now I realise...) She made a special price too : 20 euro for the lot :) - only knew the coti ( I have a vintage La Veinette ) haven't identified the rest of the rocks yet but the maroon one might be a 'La Lorraine or Rouge de Salm ?' and the green one I hope to be a Thuri - not a clue what the square one glued to the wood may be - never seen a chocolate coloured natural - I'll post some more later - I known there are some specialists here who will be able to tell me... Cheers , BartQuote:
Originally Posted by malaverdiere
Bart
Do you think that that long hollow Coticule was being used long ago as a razor hone or a knife stone? Any idea?
Alex
Hi Alex , I received a PM from a member to advise me to use as is ... I did with an old 5/8 max fassbinder razor (extra hollow solingen)which was produced during the second world war and I was truly impressed ... consider it as being like a skateboard ramp the razor just follows the curve - no X strokes just straight... It gave me a very nice edge - the edge is very narrow just like one would have used 3 or 4 layers of tape . the stone itself is very fast cutting - ended with 30 strokes - weight of the blade only- with glycerine soap - 30 on linen and 30 on leather. very nice shave - yes I'am pretty sure it was used as a barber hone and I am quite sure he was happy with it , best regards BartQuote:
Originally Posted by alx
I want to see that honing. Mind making a video???
From the era of the full wedges in Europe, this was the way they honed without tape. I am convinced of this. Yours has a very advanced concave profile and as you said acted like as you say 3 or 4 layers of tape, a shallower concave would represent 1 or 2. Great piece of history. Thanks for the follow up.
Alex
hello Ok I'll give it a try - honed my freshly restored 15/16" Joseph Rodgers on that stone today - nice edge but the proof of the pudding will be in the eating - will give it its maiden shave tonightQuote:
Originally Posted by malaverdiere
Cheers Alex - thanks to a member who PM'd me I did not cut the rock (However I was ready to ... ) he stated that if a barber used it for so long it must have been Ok - so I took the chance and I honed my 15/16" Rodgers wedge this afternoon - I'll see how the shave turns out tonight , regards BartQuote:
Originally Posted by alx
You could try doing reverse X strokes, starting in the middle and going uphill on both sides (completely the opposite of your typical X stroke), that way you would be going uphill both ways, as if it was convexed and be able to concentrate even better on the bevel.
