I am combing through my nickel collection and weighing some of my transitional coins . I have a 1943 p weighing 4.75 grams. Is that typical. I also have a 1944 p weighing 4.85 grams. I weighed my 1942 just to check my scales accuracy and the 1942 weighs in right at 5 grams. Any reasons you can think of the discrepancies in weights and do you think they would be worth additional certification review?