The initials "PVB" have been mentioned in another unidentified mark: M120716. Some people now assume that these marks are of post-WW2 Italian origin (it's a long story). The mark including "Made in Western Germany" can be found on items that various people have claimed to have purchased in 1958/59 (in Italy, of all places).

M150815a
Three flowers placed around the initials "PVB" above "HAUS DRESDEN" and "GERMANY".

M150815b
"HAUS DRESDEN" and "DEKOR" above a shield containing a eagle above the initials "PVB", all above "MADE IN WESTERN GERMANY".

M150815c
Same as before with one minor difference: an additional hyphen, so it reads "MADE IN WESTERN-GERMANY".