1887B India-British 1/2 Rupee value confusion

I have this 1887b (Raised no dots) half rupee and I am finding extreme value variations.

https://en.numista.com/catalogue/pieces15711.html


NGC lists all of the Rupee's in this KM# of high value.

http://www.ngccoin.com/price-guide/world/india-british-12-rupee-km-491-1877-1900-cuid-134882-duid-337482


Everywhere else I look has mediocre values, including in my 2015 Krause standard world coin catalogue.

1887B Raised - Mintage 407,000 F $6.00 VF $10.00 EF $20.00 Unc $65.00
Note: Type A Bust, Type II Reverse

I have seen NGC get others wrong in this manner, some adding a zero or in some cases missing out a zero.

The twist in this story is I found one on eBay while browsing, there is 8 hours remaining and the price on it so far is on £40 (60usd), it is like those bidding have looked it up on NGC and thought it must be valuable. This is what confuses me as I already have one in F/VF that I got out of a job lot, now I am in the process of identifying and labelling my new coins with a rough value included.

Which value would be correct? Any ideas/thoughts would be appreciated.

Can you please post an image of the coin? I'm no expert on prices but NGC is pretty close to the truth in this case

This is the coin in question...



If NGC are closer then that would mean there is a huge error in my 2015 Krause catalogue and a few other sources.

Only NGC is stating the value as high, that I can find at least.

I am not sure what edition of the Krause catalog you are currently using but I am pretty sure, ÂÂÂÂ the NGC values match the South Asian catalog published by Krause for the India region..

http://www.amazon.com/South-Asian-Coins-Paper-Money/dp/1440236615
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This is the catalogue I have - Here

Even from my experience at various auctions held by major auction houses in India, I think NGC prices are more real.