Bent threepence

Started by nealeffendi, August 14, 2016, 03:58:45 PM

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nealeffendi

Just purchased a nice 34/33 threepence (ebay item 262541168670), it is slightly bent (as the seller was upfront about) and I'm thinking of unbending it . The bend is a gentle curve and if I can level it then it won't show.
The only recommendation that I can see online is to put it between 2 sheets of hard rubber and putting it in a vice (that advice was in an American forum and was for dimes, which are about the same size/composition). Anyone have experience in this (or other) methods? I don't want to ruin the coin and I want to end up with a problem free threepence.

echidna

Are you sure its bent ?
Cant see the bend or any damage in the sellers pics.
These can often have slightly convex reverses.

trout

I have no idea how you would go about doing this but I do suggest that you try whatever method you come up with on another scrap bin Stirling 3d first to make sure that it works :ok:
Aim well to enjoy life. You only get One shot at it.
Illegitimi non carborundum

Basil

Definition of Wisdom in a Man.\"...the moment in a persons journey through life life when he realises 99.9% of the people he meets & greets don\'t care about himself or his opinions\".

robbiegal

i have a beautiful 1950 penny wit a slight buckle
if it works - then can I send my penny down for a vice job?
but you have to send to send it back please

trout

Before and after pikkies would be good :)
The 3d is a skinny little coin and Stirling Silver is relatively soft, So if the bending is only slight I imagine the chances of success doing this would be pretty good.
Keep us posted Mate :ok:
Aim well to enjoy life. You only get One shot at it.
Illegitimi non carborundum

robbiegal

Quote from: 'Basil' pid='94573' dateline='1471174720'I've never had much success with bent Coins,even those slightly out of whack,probably best to just leave it IMO.

http://www.ebay.com.au/itm/1934-3-Rare-A-UNC-Overdate-Australian-Threepence-/262541168670?hash=item3d20ac501e%3Ag%3A5mwAAOSwQupXWUkM&nma=true&si=J6HucXYMJ6LISpfwdcOADNrATEI%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557

humm
if you can't dazzle them with brilliance
baffle them with bull

nealeffendi

Quote from: 'echidna' pid='94569' dateline='1471169733'Are you sure its bent ?
Cant see the bend or any damage in the sellers pics.
These can often have slightly convex reverses.

It is a gentle bend. When I put it on a flat surface I can rock it slightly. I agree with Trout and might try it on some common date 3d with a similar level of bentness. Just was hoping others have had a similar experience and could give some do's and dont's tips to shortcut the experimentation.

Nevol

Just a thought.  Maybe ask a Sliversmith if he could do it without damaging the coin. :angel:
A Platypus is a duck designed by a committee ( anon)

Basil

Quote from: 'nealeffendi' pid='94603' dateline='1471199537'It is a gentle bend. When I put it on a flat surface I can rock it slightly. I agree with Trout and might try it on some common date 3d with a similar level of bentness. Just was hoping others have had a similar experience and could give some do's and dont's tips to shortcut the experimentation.

A few years back a guy on one of the Stamp Forums was advised to heat the coin(6d IIRC) in boiling water then into a vice between two pieces of wood,end result was a crease across the coin where the metal stretched(?) and one ruined Coin.
I've had several goes over the years and nothing worked,i started when i was was 10 or 12 years old with Pennies that my older Brothers and their friends put in the Tram tracks,its like the yips in Golf,once its bent that's it to my way of thinking.
Definition of Wisdom in a Man.\"...the moment in a persons journey through life life when he realises 99.9% of the people he meets & greets don\'t care about himself or his opinions\".

r9453

I agree with Basil, once the metal is bent it's deformed and probably won't go back exactly the way it was. If I was going to mess with it I would use a press not a vyce. One possible approach might be to make a spacer the same size as the rim and press down on only that part of the coin.

A bend implies that there is a crease across the coin and to "uncrease" it you would apply an opposite force to that which created it. However too much force will bend it back the other way and not enough will leave it as is.
Two Bob coin collector.

nealeffendi

Quote from: 'r9453' pid='94638' dateline='1471238593'I agree with Basil, once the metal is bent it's deformed and probably won't go back exactly the way it was. If I was going to mess with it I would use a press not a vyce. One possible approach might be to make a spacer the same size as the rim and press down on only that part of the coin.

A bend implies that there is a crease across the coin and to "uncrease" it you would apply an opposite force to that which created it. However too much force will bend it back the other way and not enough will leave it as is.

There is no crease but a gentle curve, had there been a crease I wouldn't even consider trying to level it

JeffH

Unbending will never shrink the stretching that the initial bend causes. You might make the coin look a little better but it will forever be imperfect.
Panel beaters shrink body panels by heating, hammering, quenching (not necessarily in that order) to get rid of minor dents. But that technique will destroy a coin. Panel beaters also use filler to finish off as the shrinking never gets the panel back to an "as new" surface.
Thinking is dangerous, it makes you think. That\'s why many people avoid it.

robbiegal

humm
i do recall using a cut up flattened coke can
some bodywork putty, can ó spray paint
and artistic license on the old falcon

Queensland cars - gotta love ém

the hubby's dad taught me how to do it

passes the tap test when the coppers pull you over for NOT running that stop sign with a rolling stop

Basil

Quote from: 'nealeffendi' pid='94645' dateline='1471244709'There is no crease but a gentle curve, had there been a crease I wouldn't even consider trying to level it

The crease comes after you apply pressure to straighten the Coin,i forget which side the crease forms on but i guess it varies depending on the curve and the amount of metal that has to reform and the pressure used.
Definition of Wisdom in a Man.\"...the moment in a persons journey through life life when he realises 99.9% of the people he meets & greets don\'t care about himself or his opinions\".