1971s experimental rinse Ike dollar 0

[Ratzie33]

40 percent silver the mint used experimental rinses to prevent tarnish and spotting. 

[Ratzie33]

https://mikebyers.com/unique-set-of-ike-experimental-planchets.html

[Ratzie33]

[Ratzie33]

Look at the periwinkle blue Hughes.

[Just Bob]

How do you know that this is the result of an experimental wash, and not just normal toning?

[Moxie15]

send it to NGC that is a great one for your new book!!

[Greenstang]

Those experimental rinses that Mike Byers show are blank planchets, how come yours has Eisenhower on it?

[RWB]

9 hours ago, Greenstang said:

Those experimental rinses that Mike Byers show are blank planchets, how come yours has Eisenhower on it?

The planchet annotations seem to refer to specifications for the upsetting machine, not a rinse of some sort. Equipment differences at each mint often required slight adjustments of planchet diameter, upset height, angle and edge.

The only purpose of a planchet rinse would be to add or remove oils form the surface, or to "whiten" the planchet so a struck coin is as bright as possible.

Edited October 24, 2020 by RWB

[Ratzie33]

I’ll quote the article: “ the greenish chocolate brown (color) sacs are the experimental rinse”

Edited October 24, 2020 by Ratzie33

[Ratzie33]

Those don’t look too bright to me

[Ratzie33]

What happens when you combine silver with oil?

[Ratzie33]

Notice the light grey dark grey and blue Hughes  at the top of the planchet 

Edited October 24, 2020 by Ratzie33

[Ratzie33]

[Ratzie33]

The article also references an experimental upset rim. Look at the top of the rim on the Ike dollar.

[Ratzie33]

The rim is squared off toward the apex but steeply beveled in toward the upper side as it declines toward the coin 

[Ratzie33]

[Ratzie33]

Look at the lower left edge of the coin. It displays the truncated triangle pattern characteristic of upset rims in larger denominations.

[RWB]

Ratzie33: You are conflating multiple pieces of information, resulting in a confused muddle.

It appears you feel you know all the answers before posting photos, so there is really no meaningful way to help. Most members will try to communicate, but you must be willing to listen to suggestions of much more experienced collectors. The consequence is that some are frustrated with your posts, and you are therefore receiving fewer responses.

If you want assistance, just ask.

RWB

[VKurtB]

On 10/24/2020 at 9:57 AM, RWB said:

Ratzie33: You are conflating multiple pieces of information, resulting in a confused muddle.

It appears you feel you know all the answers before posting photos, so there is really no meaningful way to help. Most members will try to communicate, but you must be willing to listen to suggestions of much more experienced collectors. The consequence is that some are frustrated with your posts, and you are therefore receiving fewer responses.

If you want assistance, just ask.

RWB

Roger, this guy is irredeemable. 

[VKurtB]

Remember the Calvin and Hobbes window decals? I got your "special experimental rinse" right here.

Edited October 26, 2020 by VKurtB

[RWB]

8 hours ago, VKurtB said:

Roger, this guy is irredeemable. 

Yeah, I already tried Green Stamps and cereal box tops -- nobody wanted 'im.