Monitor 5 series ii with sl2500 tweeters

Hello all, I came across a pair of Polks for sale today. They are monitor 5 with the sl2500 tweeters. I opened them up and found a sticker inside with a build date of 11/06/90, however neither mid has the label which is common on most polk mids.
Does anyone know what mid model number is used in these?


Does anyone know what mid model number is used in these?


Comments
https://forum.polkaudio.com/discussion/38755/polk-audio-speaker-wiring-schematics-amp-more-all-models-except-sda#latest
I would ASSume that the earliest Model 5's probably did come with the MW6500 but we don't have any schematics from that early. Must've been a fire???
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I think you're spot on.
You may be correct as many did. The schematic page only goes back to the original 5B and it has a 6502.
Man that Doro guy went above and beyond with all them schematics. What a trooper.
Much better....thank you.
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