Amy emailed me a few weeks ago to see if I had any information about her stove as she was planning on selling it. She was able to find the model number under the right burners - DCV-5776 13 with the serial # K08 1418.
Her house was built in 1948 and the stove was included when she bought it. She described the stove as a gas, four burner stove, white, 36 inches wide. The oven in on the right, with a broiler underneath. On the left is a storage area. There's a large clock on the top front.
I haven't been able to discover too much yet about the Tappan models that followed the Deluxe, but in looking at the back splash and clock, we came to the conclusion that this stove was most likely late 1950's.
My favorite feature of the entire stove is the back splash....especially the clock.
(Amy just sent me an update - she was able to sell her stove to a theater group that is going to use it in one of their productions.) Thanks, Amy!