vin felt opening size.

Need some info from a very original L model. Could someone measure the felt opening size around the peddle box vin number on a 73-74 car with the original felt intact? This is after the earlier installed code plate was removed from production. How wide and how long is the opening and if the vin centers within the opening of the felt cut out or is if off-set in any direction---left to right---top to bottom. Thank you in advance.