I have a signed lithograph of a French Street. It is 253 of 275. There is a raised seal of The Collectors Guild and "Nouvelle Gravure" My mother was in Paris before WW11. One of the restaurants in the picture was "La Boheme". Another building has "Au Clair_ Des Chasseurs" The signature could start with a D or C. Last name could be Moyer or something that looks like it . Any help would be appreciated.Thanks,