For your consideration are PS Audio BHK 300 monoblocks. Silver in color. These are in very good condition. I can not find a mark on them. I have all original packaging and power cords, etc. These have approximately 3000 hours on them. I purchased these new from an authorized PS Audio Dealer.
Asking $7250 for the pair + Shipping.
I also have a matching PS Audio BHK Preamp for sale in case you want the full set. $3500.