[AI2V]

Do the 4-band 640 and 650 Philcos have a dial mask that moves behind the dial to show which band it is on? It doesn't seem to be present in two 650's and one 640 in my collection; oddly enough, the 3-band 645 DOES have this mask, changing the brilliance of the indicating "Y".

I just bought a junker 650 with the idea of transplanting this mask- but the junker doesn't have one either. At least I now have a cabinet for the 640 chassis that's been collecting dust.