Valak 1772

I spoke with my contact. He explained to me that this is a very hard coin to find. The history behind these coins is quite interesting, struck from captured Turkish cannons in Sadagura. It is widely accepted that this particular coin is a pattern coin not meant for circulation (payment to Russian soldier). Most if not all coins that have been found are in poor condition. Striking details are poor (a minting issue, dies were not meant to strike on hard metals). Corrosion and wear is something else.
There is unfortunately not a lot of sales data for this coin. It doesn't appear too often. He remembers one for sale at an auction house sometime in the mid-2000's for about $1400.00. Your best bet may be scouring Russian and Romanian coin auction sites to see if there is a more recent sale.
However, you do have the recent e-bay post as a guide. At $3400 with that seller's condition versus yours, he thinks a price between $1800 to $2400 would be a correct estimate. He also mentioned that it may be a good strategy not to sell while that listing is up, because you are positioned into a lower asking price based on the other sellers price point and better condition. Might be better to wait until that sale finalizes, and list at the higher end of the estimate ($2400, or higher)and be the only one offering the coin. You should attract serious collectors who want this coin, and you have more freedom about the price.
He also stressed looking into having the coin certified. It would improve your position, if a firm would have a knowledgeable person who could verify it's authenticity. Auction would be another route.
Nice find if it is authentic. Good luck with your listing.

Could anyone tell me if it's worth cleaning the coin?
If yes, would appreciate your suggestions.

The mark of history adds its value!?

You can clean it and the value of the coin will drop drastically. You don't have to listen to everyone's advice and proceed.

Honestly, I am very puzzled that you knew the rarity of the coin and made a huge fuss when the value of the coin was not what you wanted to read and told people to back off. On the other hand, amateur coin collectors should know that cleaning coins are not recommended. Conservation may be an option but it can leave pitting damage which makes it less desirable.

Now why shouldn't this quote "P.S. It is better to remain silent if you dont know what to say!" apply when you should know that cleaning is not recommended?

People are here to voice their opinion or help and by rebuking their comments, not only are you burning bridges very fast - it does not leave a good impression. A crappy apology as "harsh reply" is not acceptable when you did not initially bother to explain what you have and assumed we are on the same wavelength.

Point is, this is a free forum and there is expectation for basic manners to follow. You are not dealing with experts and you are not paying a service and it is more than unreasonable to expect everyone to know your interest or speciality. I wouldn't claim to be perfect and do make mistakes. However what irks me the most is if I don't get a full picture of what I am asked to give an opinion on and had a yelling because it is not an accurate accessment - what exactly did you want to hear.

Unless this is a cultural thing or something I am missing, I am certain many, if not all do not wish to read such "harsh replies".

@ gxseries & Numismat
Everybody is entitled to his/her own opinion. You can say whatever you want, troll me or try to express your opinion on my way of speaking; but keep in mind this "whenever you open your mouth double check that what you want to say is correct".

Your guys remarks have nothing to do with the initial topic and therefor it only spams the thread. If you have nothing to say about the topic just pass along and do not spam the conversation.

Cheers