The ornamental design for a memorialplaque, as shown and described.
FIG. 1 is a front elevational view of a memorial plaque showing my new
design, the broken line inscription being for illustrative purposes only;
and
FIG. 2 is a left edge elevational view thereof.
The rear of my new design for a plaque is plain and unornamented.
The design described herein may be reproduced and used by or for the
Government for governmental purposes without the payment to me of any
royalty thereon.