[R-390] Source for crystals now that International Crystal is Gone

[Gary Geissinger]

 Gentlemen,
I have a number of vintage radios that need crystals.  I used to call Marie at International Crystals; she would find the index card for the crystal and make me one.  Well, Marie is retired and International Crystal is gone.
Where can I go to get "custom" crystals made to repair my older radios?  Yeah, they are going to cost real money, but the radios are worth it.  Most are in the HC6/U case.
Thank You,
Gary WA0SPM, member US Army MARS