Scriptura › Dictionary › Heliogravure 1 entry 1 source Heliogravure Open directly Webster's 1828 Dictionary · 1828 Part of speech: noun (n.) The process of photographic engraving.
1 entry 1 source Heliogravure Open directly Webster's 1828 Dictionary · 1828 Part of speech: noun (n.) The process of photographic engraving.