The weight looks like a regular Paul Ysart Harlequin to me. The canes seem to be ok and that thin yellow-white ground is known in his weights. A perfectly flat, polished base is quite normal for lots of Paul's work throughout all his years, but particularly for the 1970s.
The one shown in my web pages (not the clearest of images) has an "H" cane in the underside and this is not visible from the top. One day, I will get around to updating my pages such that details of weights signed with an "H" cane, or just a label, are shown. But like many of my good intentions ... it's already been a while and it might be a while longer.
Willie Manson told me something about the number of bubbles in those weights. Paul made them with either 6 or 8 bubbles but Willie, when he was with Paul, only made them with 8. So, on that basis, a weight without a "PY" cane, but with 6 bubbles, and canes that check out correctly, can be attributed to Paul. Weights with 8 bubbles may have been by Paul or Willie. And I imagine some may also have been made by other assistants after Willie had left.
But take a close look at the canes, both from the top and the bottom. Is there somewhere an "H" cane? Sometimes the cane is hard to see. If it definitely has no "H" cane, then perhaps it simply had a "py" label, whcih is now lost.
Or maybe it's a weight from an earlier period - although to me it does look like 1970s.