route22ny:

Postcard view of King Tower along the Lincoln Highway at Tama, Iowa, circa 1960.  The restaurant is still open but the gas station is gone.  From the collection of Russell Rein.

“A quintessential small town diner off Hwy 30. King Tower Cafe
features a diverse breakfast to bedtime menu at affordable prices. The
atmosphere is relaxed, friendly and communal with custom murals
celebrating Tama County’s rich Meskwaki Indian history. Wireless
Internet available.

“The complex opened in 1937 as a “one-stop” which included a filling
station, garage, wrecker service, café, and 18 cabins. Located along the
original Lincoln Highway, which was America’s first trans-continental
highway.”  (source)