Differential UBV photometry of two CP3 stars: 11 Her and 6 Her Differential UBV photometry of two CP3 stars 11 Her and 6 Her ispresented. The effort is focused on 7832 period reported by Rakosch andFiedler (1978) for 11 Her. However, the observations from the seasonJanuary 1991 - September 1993 can not confirm suggested period.Moreover, 6 Her seems to be constant within 0.01 mag. as well.