Strange Seat

I picked this bike for the seat and the motor… I ‘ll soon have a Gold Rd250B with missing jugs and I thought it would be a good idea to have a few spares.

I really like the seatz and how it looks. It’s all shot now, ‘fcourse, but the printing and the using the original mounts, the strips make me think it could be a Yam Accessory. Did these exist? or is it a shop special?

and this might be my next project, not a dent on it, a bit of rust, not even stuck! 
Is this the Brigade Blue? It is spunky!

EDIT: It seems it is a Guilliari.