So a question of practice for those of us who aren't LC: Should these records be treated as generic expression? Or specific expression? I presume the 046s aren't meant to act as the start date(!) for a collection of English expressions covered by a single record. I have one translation record in front of me I'd like to edit, but don't know how to go about enhancing it, if at all (n 85022980, last touched in September 2013).
I've come across several authority records exclusively sourced and edited by DLC (per the 040 field) for English translations that include 046 dates that specify the date of expression. The heading itself is generic following LC-PCC PS 6.27.3--Name. Title. English--but the record is made specific with that added date. Many, but not all, of the records were last edited in February-March 2013, which point to the Phase 2 RDA Authorities project. However, none of the 1xx/4xx headings use the $f, which I presume would be the source for the automated population of the 046 field. Several 046s also don't match the source dates in the 670s; manual intervention is implied there.
Random examples by LCCN: