Sliding window latch

A professional from Hawaii says:
the latch looks like part #90-093, is that correct?

if so, what is the accompanying sash?
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Paul from SWISCO responded:

Hello and thanks for writing in. The Malta lock and keeper you show have been discontinued and no longer available. There is a possibility that the 90-093 Nu Sash toggle lock may work for you, however, there is no keeper replacement available. Take a look and let us know what you think.

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