Yes, pretty scarce! Looks nice but pics so tiny it's hard to be sure.
Interestingly, Protek has added to its description of the Diana 35 that it's still advertising as a circa 1925 Diana 34 to say the following:
"For avoidance of doubt we initially identified this as a model 34. This identification was taken from a 1927 Gecado catalogue where there is listed “NR2776 (Diana NR34) Wir number 2772, aber mit Englischem pistolgriffschaft und fischhaut” A re-reading of the catalogue leads us now to believe this seems to refer to a more familiar Diana 27 style rifle but with an English style checkered grip. (Possibly same as a pre world war 1 Lincoln Jeffries type pistol grip stock). The 35 is listed as similar “Aber mit Langem Vorderschaft” (but with long fore end). So this is a 35 but 34 did exist (as did 33 and 32) but gone by time of 1929 Geco catalogue that we have."
All very fascinating stuff I'm sure, but it's still an early Diana 35, probably dating to 1928-30.
Se here for more prewar Diana catalogues than most humans can bear:
https://forum.vintageairgunsgallery.com/vintage-diana-resources/diana-airguns-pre-war-catalogues-brochures/