FAY Home recorder with Meltrope 3 type soundbox-writer

[herrickpickups]

Iv'e been given 1 of these & it lacks any instructions, although it doesn't look too difficult to fathom how it works, wondered if anyone has a digitised copy of the instructions please & what type of needle needs to be made with which angle to cut a sound onto the surface of ....What ? Aluminium ? Thanks.