Two & Four - design and mfg by Wayne Daniel, IPP 29 exchange. Four wooden pieces with angular cuts. Not coordinate motion, and small at about 2” in width. Small gap at top of puzzle (see photo), but good fit otherwise, and smooth action.
Postage to be calculated after the auction, so please don’t pay until I send you the total with postage, which you can Paypal to tomjolly2020@hotmail.com. Preferably to Friends and Family.