I recently came across a complete three-volume set published in Paris in 1933–1934 by Archimandrite Alexander Wolkonsky (Архимандрит А. Волконский), titled:

> “Католичество и священное предание Востока”  
> (Catholicism and the Sacred Tradition of the East)

The volumes are:

1. Vol. I: Христианство и национализм (Christianity and Nationalism) – printed May 1933  
2. Vol. II: О Папе (On the Pope) – printed November 1933  
3. Vol. III: Три догмата (Three Dogmas) – printed August 1934  

All bear original Nihil obstat and Imprimatur colophons from real historical figures (e.g., Bishop Petrus Bucys, Auxiliary Bishop Emmanuel Chaptal of Paris), and were issued by the Russian Catholic Church in France from two Paris addresses (XVIᵉ and XIIIᵉ arrondissements).

The set appears to be in very good condition, with original green paper covers, prices in francs (6 fr / 20 fr), and consistent typography typical of Russian émigré publishing in interwar Paris.

I’m curious:  
- Is this a known or sought-after set among collectors of Russian émigré literature?  
- Any insight into its historical or bibliographic significance?  
- Rough idea of its market value (if appropriate to ask)?

Photos attached: front/back covers, title pages, and colophon pages for all three volumes.

Thank you for any help!

1933 Paris: 3-volume set by Archimandrite A. Wolkonsky – ‘Catholicism and the Sacred Tradition of the East’ – any info or value?