Hi John, Thanks for the information. My computer crashed so it's taken me a while to respond.
I now see that the squawker/tweeter boxes are #1291 & 1290; the woofer boxes are #1171 & 1172. The tweeter has the # K-77; the squawer horn has K-400; the driver has K-55 (824 675); the crossovers are AA. There are no letters V or M behind the above. There is no opening to the woofer, covered by Formica, but on the woofer boxes K-55B. Does this shed any light on this? Thanks for your help.....Bob