Couldn't find any specs online that match up to these:
44mm ID x 55mm OD - filter side (A)
32.5mm ID x 43mm OD - (approximate) engine side (D)
End to end = 113mm (B)
casting numbers 153 13 on both carbs (engine side)
and one has b 63 and the other has b64 (left and right pair)
97.5 main jet...