I guess there is some variation to these U-934 types, with or without Crown Logo and the manufactured date. This white cable top was made by Imperial Porcelain works. It has a manufactured date of: 8-6-97. This was purchased out of British Columbia some years ago. It has the wonderful 'crown logo' on it. By zooming in, or using view original you can read most all of the incuse markings. Very neat, old porcelain power piece. More Imperials to follow.