who makes these roller rockers?

Thanks guys, I will take some carefull photos in the morning.

The fact that they are MOPAR hold downs speaks some as I bought them with these.



They came from an estate sale as did the heads, block valve covers and pushrods ( push rods look quite fancy as well but most likely will not ne resued, size.)

The heads were supposedly built by Bob Grom and ran these rocker arms.(Ol'e Bob is my shop neighbor and build many MOPAR heads, He is sick or I would just ask him. Prayers for him and his family.)

Thanks again for the time and advice.