Here is one that looks like yours on Ebay - http://www.ebay.com/itm/India-1-2-A...c7778&pid=100204&rk=11&rkt=28&sd=301621069764
#2 is a Chinese Lunar Zodiac Coin.. that's the best info I can give you. The other coins.. I don't know
The ebay link has the price which seller is asking. Is there any source where we can find the book value of it?
yes true.. sorry. I'm sure there is but I don't know. Was just giving you an idea. Maybe someone else will chime in.
#1 looks like this: http://www.ngccoin.com/price-guide/...y-36-132438-sic-132944-cuid-52819-duid-143635
Yes I knew that. Weight also determines if it 1/4 - 1 Rupee. If you can read it that would also tell you the amount it is.
Re #5, the 1/2 Anna . . . NGC World Coin Price Guide says $20 in VF. I'm guessing yours is closer to F. 1835-1845 India-British 1/2 Anna KM 447.1 Prices & Values | NGC