HP 87: PLOT ROM B 00087-60929

[Michael Fehlhammer]

Thank you Bob, J-F and Martin!
@ Bob: I found Martin's System Inventory Tool and FDIO and will try to build a floppy disk with my old PC.
Following J-F's suggested procedure, I did a MEM dump with both the "strange" PLOT ROM B 00087-60929 and the "normal" Plotter Rom Rev. B.
In both cases the resulting byte sequence is exactly the same as the one J-F got from the emulator!
So we can be pretty sure that the plotter rom 00087-60929 is identical to 00087-15002. The reason for the existence of a separate order number has been well explained by Martin.