Here is a X band WR-90 standard flange (8-12.4 GHz) variable waveguide attenuator, made by HP, model X375A in WR-90, 0-20 dB. Works fine, shows its age but nicely made. Handy bench item if you are playing around at X band!  Have fun!

If you buy multiple items, ask for an invoice before you pay and I will combine shipping for you!