All Pieces Marked with Logo "SCH" over line with "P" Below inside Heart.

From my brief internet research, it appears that this logo was granted to "Blech & Metallware Fabrik Schutz & Patry Serial Number 72117086" in 1961 and trademark lasted until 1987. Information from a Facebook post says the factory in Vienna closed in 1971. Facebook post also said the factory was known to make "cutlery with heart". Please verify this information for yourself as I found very little information on this company.