| OPUS NO | INST | STATUS | LOCATION | CITY | STATE | COUNTRY | STYLE | SHIP DATE | UPDATED | UPDATE | SPEC | ETC | WS | WS Detail | SEE |
| 534 | E | PT | 16' ENGLISH POST HORN (12 NOTES) TO OPUS 2006 | BERKELEY | CA | USA | SP | 11/03/2003 | SP | 2006 | |||||
| 538 | A | SD | LEON DOUGLAS RS | MENLO PARK | CA | USA | SP | 28/04/1922 | SP | ||||||
| 538 | AA | AD | AD | MENLO PARK | CA | USA | SP PL | 1/1928 | SP | ||||||
| 538 | B | SD | GLAD TIDINGS TEMPLE | SAN FRANCISCO | CA | USA | SP PL | SP | |||||||
| 538 | BA | AD | - PLAYER | SAN FRANCISCO | CA | USA | SP PL | 19/02/2000 | SP | ||||||
| 538 | C | SD | TOM DELAY RS | SALINAS | CA | USA | SP PL | 1999 | 19/02/2000 | UD0538 | SP | ||||
| 538 | D | OK | RUTH VILLEMIN DRESSER | VISALIA | CA | USA | SP PL | 2006 | 28/12/2006 | SP | |||||
| 541 | B | PT | JAMES GAINES (CS) | LOS ANGELES | CA | USA | 260SP | 1960 | 260 | ||||||
| 541 | C | PT | ARTHUR ASLESEN RS(CS) | POMONA | CA | USA | 260SP | 12/03/1973 | 260 | ||||||
| 541 | D | PT | MALIN DOLLINGER RS(CS) | PALOS VERDE | CA | USA | 260SP | 12/1974 | 260 | ||||||
| 547 | A | SD | EXPOSITION | SAN FRANCISCO | CA | USA | CH | 31/05/1922 | CH | ||||||
| 547 | B | XX | RIALTO TH | EL MONTE | CA | USA | CH | 8/1969 | CH | ||||||
| 554 | A | SD | DR VANDERLIP | INGLEWOOD | CA | USA | D X | 29/06/1922 | D | ||||||
| 554 | B | SD | METHODIST CH | INGLEWOOD | CA | USA | D X | 1940 | D | ||||||
| 554 | C | OK | HOWARD VAUGHN | INGLEWOOD | CA | USA | D X | 1968 | D | ||||||
| 564 | D | SD | PIPES 'N PIZZA | SACRAMENTO | CA | USA | SP 3M | 1/1973 | SP | ||||||
| 564 | E | OK | TRINITY PRESBYTERIAN CHURCH (SPRING VALLEY) | SAN DIEGO | CA | USA | SP 3M | 23/05/1998 | SP | COMBINED WITH OPUS 1520 TO FORM A 4/24 | 1520 | ||||
| 568 | D | PT | JOE KOONS CS | LONG BEACH | CA | USA | 260SP | 1/1971 | 260 | ||||||
| 570 | B | SD | RB 1ST ENG EV LUTH CH | LOS ANGELES | CA | USA | 135A | 19/09/1936 | 135 | 1,156 | RB "2MN" 1st English Lutheran CH, Los Angeles, CA. | ||||
| 570 | C | OK | RB KEN KUKAK | LOS ANGELES | CA | USA | 135A | 24/05/1971 | 135 | 1,156 | RB "2MN" 1st English Lutheran CH, Los Angeles, CA. |