Mellone Number	Levy Number	Thumbnail	Cachet Maker
M-11	Levy 41l		Cachet Craft - Ken Boll
M-12	Levy 41k		Cachet Craft - Ken Boll
M-13	Levy 41u		House of Farnam
M-14	Levy 41kk		Fidelity Color-Craft
M-15	Levy 41j		Fleetwood
M-16	Levy 41t		Fluegel
M-17	Levy 41f		Fulton
M-18	Levy 41y		George (CWG)
M-19	Levy 41n		W. M. Grady
M-20	Levy 41h		H. Grimsland

Mellone 1 to 10   Mellone 11 to 20   Mellone 21 to 30   Mellone 31 to 40   Mellone 41 to 52

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For complete information about these first day covers, including notes about the cachet designers and suggested prices, we suggest you obtain the Mellone Cachet Catalog of FDCs of the 1950s Volume I available from FDC Publishing