Yes the catalogue is that one; I think that Ambrosio start to produce alloy stems and handlebars in 32-33..I' ve seen an old photo of Martano, dated 1933, with the same stem.
Anyway, also for me our frejus was the top model in 32-33-34..if you look at the photos of Martano and Bartali in 1934, they ride a Frejus like that one...after 1935, I think, the new model came out..

I've found that beauty in a farm, near Torino..the only think that si not original si the rear hub (gnutti) and the wheel..

p.s. If someone have a rear hub old stile marked Frejus contact me..