Station Phytopathologique -- Official Handstamp and Auxiliary Mark

 

 

Handstamp:

S.P.

Boxed Auxiliary mark:

à affranchir d’office
Amtlich frankieren.

 

 

Luxembourg-Ville, 5 May 1926
Transit Luxembourg-Limpertsberg, 5 May 1936
Zürich, Switzerland [b/s], 6 May 1926

Franking:
2F Esch Foundry
(with red Officiel overprint)

UPU 20g letter rate = 1.00 Fr.
UPU registry fee = 1.00 Fr.

 

Interesting violet auxiliary mark and handstamp used by the Department of Agriculture’s Station Phytopathologique to signal use of official franking.