I have two early and one late relay boards restored and ready to ship. To only difference is the threaded insert for the threaded stud for the cover. It it circled in red in the image.
Each board is stripped of old tar, ultrasonically cleaned, repotted and tested. Contact terminals are cleaned for good contuctivity.
$165 shipped.
I found the lastest can of sealing compound was thinner in viscosity and shows the pattern of the traces below.