The profiles are clearly unique, especially on the crown. Straight from my collection! The one on the left is embossed in tiny letters "HEMAH". This has been newly assigned CD 569.2!!

The one on the right says TC-III 1968 on the crown and has a large mold repair all around its lower outer skirt. I believe the one on the right was used as a service line drop on a house in Belarus. This one is also considered a CD 569.2 variant.