5 Lepta 1870

Hi, I would be glad if someone could point me to appropriate grade and possibly also a value of this coin?

https://en.numista.com/catalogue/pieces1990.html

Grade: F
Value:: ~3€

It's severely damaged so not gradable.

Value: €0.25

I'm not sure if we should ban it to the bin.

It's the rare date of two years, NGC list a value of $90 for VF grade.
http://www.ngccoin.com/price-guide/world/greece-5-lepta-km-42-1869-1870-cuid-19817-duid-62117

As a rule of thumb, I divide VF value by 2 for each grade downwards. I would grade this coin F (not looking at the damage), which makes $45. The damage would further reduce the value. In this case I'd go for a reduction of 50%, which makes $22.50. If you find the right person, which may take a while, you might get $15-20 for it, and that would seem fair to me.

Thanks for replies. :)
I personally - being unsure and aware of the damage, graded it VG. And bought it for 2€, so it seems to me as a win-win.