Siemens e288cc: military version of 6922 - $100 or best offer. Please make an offer if interested. This is a great tube for Decware units using a single 6922 (one of Steve's favorites).
Check pics here:
https://www.usaudiomart.com/details/649812231-nos-siemens-e288cc-7308-gold-pins-...I also have 2 Siemens E88CC CCa. These are highly rated and not so cheap to find a matched pair testing new. Please pm me for pics. Not sure about price for these, probably ~$170.
Excellent tube at a very low price.