Yezalboff your pictures are pretty rough but I think coop is right in that from what's seen you have the 1988 D FS-901 RDV-006. If so you got a dandy there. I have an 88 D RDV- 005 I misidentified as an RDV-006 due to die chip or something which made the G appear tailed or flared. The test that proved I was incorrect was the distance of F from corner of building. The strength of the flared G varies significantly between the known dies for both Philly and Denver examples so although some are thinner and not as thick all are alike in the G being clearly flared and the F being very close to building.
Compare your example to a normal reverse and the difference is drastic. Your 88 D is a major find congratulations savor it.