9 Kr. Large shield medium red brown along with two pieces 1 Kr. Yellowish green and 7 Kr. Ultramarine on correctly franked double heavy letter from single circle postmark "FRANKFURT A. M. 24 / 6 74" to Paris / France with entrance stamp, the 9 Kr. In the better colour faultless, additional franking defects, scarce representation of the 18 Kr. Postage, new photo expertize Krug BPP (2018) "the letter. . . The 2nd weight step from known correspondence to Paris is with 18 Kreuzer correct franked. . . . Unusual three colours franking. "