Does anyone have a spare brown/gold bakelite fine tuning knob for my "new" Motorola 7VT2?

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=6180203513&rd=1&sspagename=STRK%3AMEWN%3AIT&rd=1#ebayphotohosting

Thanks in advance!

Murray Kerdman