Konica enlarging paper ~ RA-4 process?

<p>Looking for information about how Konica type SP paper was processed, and years of manufacture. Here's a picture of the box of paper in question.</p>

<p>Many thanks!</p>

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<p>Yes it is an RA-4 compatible paper for enlarging from color negatives. I don't know about the year of manufacturing but it's would be outdated by now as Konica has stopped making enlarging paper in quite a long time. You can get the information here <a href="http://konicaminolta.ca/pdf/ProfessionalSPTech.pdf">http://konicaminolta.ca/pdf/ProfessionalSPTech.pdf</a></p>