CH 1946 F41 Pro Aero FDC Special Flight Lausanne-Locarno with vignette

Switzerland 1946 (Air Post stamps - Pro Aero)
Pro Aero Special Flight Lausanne-Locarno of 22.V.46, SBK F41, Michel 470, with add-on franking stamp,
FDC registered mail (subscription letter) cancelled "22.V.46 LAUSANNE 2 - Poste Arienne" and blue add-on cancellation "PRO AERO 1946",
front side arrival cancellation of flight "22.V.46 LOCARNO",
with yellow flight vignette "Vol postal spécial PRO AERO Lausanne-Locarno",
illustrated cover with address, very decorative cover, luxury quality.