I too think it is a halfpenny. I have a book that gives its weight as a gram heavier than yours, so allowing for wear it seems about right. On this site the three listings at the end of the page
https://en.numista.com/catalogue/royaume-uni-4.html
are as follows
½ Penny - William IV 1831-1837 Copper – 9.4 g – ø 28 mm KM# 706
and my book says Copper – 9.389 g – ø 28 mm
½ Penny - Victoria (1st portrait) 1838-1860 Copper – 18.8 g – ø 34 mm KM# 726
and my book says Copper –
9.457 g – ø
28 mm
½ Penny - Victoria (2nd portrait) 1860-1875 Bronze – 5.7 g – ø 25.4 mm KM# 748
and my book says Bronze – 5.693 g – ø 26 mm
It is from Collectors Coins GB 2009 by Chris Henry Perkins issued by Rotographic.
Allowing for rounding-up to nearest number, I reckon the two figures in bold are worth changing, once verified of course. The wording in my book for both obverse and reverse are exactly the same as yours, so it is a British coin; do overseas old coins have at least the country on, even if not the value?
Actually I just noticed that the same book for the penny of the same date says
Copper – 18.82 g – ø 34 mm so that looks most likely that the two figures on Numista page are for a penny and not a halfpenny.