I have just had a Victorian mirror renovated and want to hang it onto a brick and plaster wall. The mirror weighs about 27 kilograms (60lbs) in weight.
I'm told it would have originally hung above a mantelpiece using mirror plates to hold it at the top (left and right) and sides (one each side near the bottom) the mirror would have rested on the mantelpiece to take the full weight
Because I want to hang it on a plain wall with no mantelpiece to support the weight of the mirror, what would be the safest method to use to hang this heavy mirror?