The sub-text _free & fabulous_ is small but it appears to be also in ITC Tiffany Heavy

ITC Bookman Medium plus swash letters from ITC Bookman Swash

The heavy weight matches the blue outer contour.
The bold weight is similar to the yellow fill

The _H_

Script Bold, originally published by Monotype Corporation in 1931.
The Cincinnati Reds Wordmark Logo uses a clean and precisely engineered version that matches the Monotype digitization
Swash is a custom addition.

URW's Charter Oak is a digital version
Charter Oak was originally produced by the Keystone Type Foundry, which operated in Philadelphia from 1888-1917.
Charter Oak is shown on in their 1906 specimen book https://archive.org/details/abridgedspecimen00keysrich at pages 143 to 145.
As you note the font was popular for bus signage in the 1960s.

Hohenzollern by A. Fahrenwald for Bauersche Giesserei, Frankfurt, 1902, as shown in Ludwig Petzendorfer's _Authentic Art Nouveau Alphabets..._ Link to a scan by Luc Devroye of Petzendorfer's image:
http://luc.devroye.org/Bauersche-Hohenzollern.jpg
There is a digital version here at Dafont

cediano

See also Cloister Black

Final _k_ combines top half of:
http://www.myfonts.com/fonts/argentina-lian-types/reina/12-pro/glyphs.html#glyphs/502556/132
with bottom half of:
http://www.myfonts.com/fonts/argentina-lian-types/reina/12-pro/glyphs.html#glyphs/502556/131