Type 15b. The lower left frame junction line is unbroken above the top of the spandrel but is broken between the top and line 1.
Marler Type:
Plates Used:
Earliest Reported Use:
Q
"to the best of our knowledge, plate 77, the sole source of type R15b, was never put in production. Marler thought the plate was never used, there were no reports in the Lundeen plate census on the BNAPS website, and I've never seen an example."