The 1936-P circulation strike Lincoln Cent is one of the more common dates and mint marks from the series. The Mint struck them in the hundreds of millions and enough rolls were saved that examples in higher grades of MS65-MS66 are abundant. Only in MS67 condition is it considered scarce. Although hundreds of examples have been verified in MS67 Red conditiion, yet, they are still tough to find in rolls. It might just be best to buy an MS67 Red graded example than to try and find one.