I claim the ornamental design for a holder for a baby bottle, as shown and described.
FIG. 1 is a perspective view of a holder for a baby bottle, showing my new
design, the broken line showing of the baby bottle is for illustrative
purposes only and forms no part of the claimed design;
FIG. 2 is a side elevational view thereof, with all other sides being
identical thereto;
FIG. 3 is a top plan view thereof, taken in the direction of line 3--3 in
FIG. 2; and,
FIG. 4 is a bottom plan view thereof, taken in the direction of line 4--4
in FIG. 2.