RT Book T1 Permanent Sabbath documents of the American and foreign Sabbath Union LA English PP Boston PB Perkins & Whipple YR 1851 UL https://ixtheo.de/Record/1894048601 OP 76 NO "Constitution": verso of t.-p. - "Extracts from reports": 76 pages at end CN BV 107 K1 Sunday K1 Worship