This is the most insightful but yet underrated one youve done.
There seems to be quite a bit of misinformation going around so I'll try to correct it. The 2p coin from 1971 has NO value, it is regular 2p, there's noting special about it at all, the 2p coin with value is from 1983 with the words "new pence" on them as in 1982 they replaced the "new pence" on the coins with just "two pence". However a small number of coins where mis-stamped in 1983 with the words "new pence" on them, find those and then you're in the money.
kya price hai iska