Hay Rake Identification

[Psb Houston]

I have an old belt link rotary hay rake that fits a 3 point hitch. It is a pale green and yellow with the only markings " F a" stamped as a logo in the sheet metal. It runs the tines which are mounted on a double belt drive and throws the hay against a set of "fingers" which stops it and forms the row. Not a great idea for hay but it works wonders on pine needles.

I have no clue who made it - can someone recall who did.

Many thanks