1970 Princeton @813 (what ever that means) with an Italian made Jensen 12" "special design". With the foot switch, the back of the amp says USA 71. There asking $499 I will try to get them down a bit.
Well, good news and bad news. $499 for a SF Princeton Reverb is a killer deal-they usually run in the $600+ range. Unfortunately, that amp has had its baffle replaced for teh 12" speaker, so $499 is probably about right. I'd sell the Jensen and replace with a Weber 12A100 or something similar...
I usually use fleabay for best guess at current pricing. Seems that completed auctions for these are all over the place -- as low as $350, as high as $500+. T'were my $$, $499 would be on the high side, but I'd subtract for the installation of the 12" Jensen, where others might see it as added value.