LIBRERIA FISCALFILATELICA
VACCARI: http://www.vaccari.it/
J. BAREFOOT http://www.jbarefoot.co.uk/
E. JACKSON http://www.ericjackson.com/ 
H.H.SALES http://www.hhphilit.com/hh2.htm
L. H. HARTMANN http://pbbooks.com/revenue.htm 
M. PAYNE http://www.murraypayne.com/rhome1c.asp