WE RECENTLY INHERITED A LARGE QUANTITY OF MOLDS FROM MY MENTOR OF 30 YEARS PAST. THIS IS ANOTHER ONE HE MARKED 1941 PONTIAC?? SO WE CAST IT BUT DID NOT TAP IT AND WILL OFFER IT FOR SALE. THIS CAN BE APPLIED WITH EPOXY OR THE NEW OWNER CAN TAP THE HOLES FOR CORRECT FIT. IF YOU KNOW FOR SURE WHAT IT IS, PLEASE ADVISE. IT MEASURES 3 3/8"+ ACROSS AND IS JUST SHORT OF 3/4" TALL AT THE CENTER. THE HOLES FOR THE SCREWS ARE 2 1/8 CENTER TO CENTER.SHIPPED IN A 4" CUBE BOX GLOBALLY. THANKS-