There were no mint marks on any U.S. coins during the years 1965 to 1967.
In any case U.S. cents from the 1960s are extremely common. If found in change, they're only worth face value to a couple of cents depending on how worn they are.
Assuming you're referring to an American cent, the answer is in two parts:
First, the U.S. has never made brass cents; pennies were made of bronze up till mid-1982 (except of course for the wartime steel cents made in 1943, but that's another story). Your coin is almost certainly either plated or possibly discolored. There are high-school science experiments that demonstrate various reactions by changing the color of a penny.
Second, about 3 billion cents were made that year with no major errors reported, so anything you find in change will only be worth its face value, one cent.
It's worth 2 cents for its copper content.
There are no 1967 steel pennies.
Face value only.
The 1944 steel penny is worth between $75,000 and $110,000. This steel penny was minted by mistake and there were not a lot of them around.
A 1943 steel penny with no mintmark can be worth $.35 - $1.50
A 1943 steel penny is worth just that 1cent.
Steel cents were only made in 1943. Your coin is plated. It is considered an altered coin and is worth a penny.
face value
Face value only.
Around 5 cents.
One cent
1 cent
A silver penny in mint condition is typically worth around $5-$20 to collectors, depending on the specific type and rarity. A penny from 1967 with a silver front and a goldish looking back may be a novelty coin that has been altered or plated, and would likely be worth only face value as a regular penny.
wipe the dust outta yer eyes its a copper penny
It's steel, not silver, and it's worth about 5 cents.