SP F-units page: 1952-1953 F-unit swap between SP and T&NO
1965 Renumbering:
From December 1952 to January 1953, the SP and T&NO traded 16 F7A's, 4 F7B's and 12 F3B's (which had come from the Pacific Lines a few years earlier) for 16 F7A's and 16 F7B's. Many (but not all) of the units sent to the T&NO were returned in 1957 (and a few in 1960.)
T&NO F7A's to SP:
| new SP number | prev T&NO number | |
| SP 6424 | T&NO 338 (1st) | |
| SP 6425 | T&NO 339 (1st) | |
| SP 6426 | T&NO 340 (1st) | |
| SP 6427 | T&NO 341 (1st) | |
| SP 6428 | T&NO 342 (1st) | |
| SP 6429 | T&NO 343 (1st) | |
| SP 6430 | T&NO 344 (1st) | |
| SP 6431 | T&NO 345 (1st) | |
| SP 6432 | T&NO 346 (1st) | |
| SP 6433 | T&NO 347 (1st) | |
| SP 6434 | T&NO 348 (1st) | |
| SP 6435 | T&NO 349 (1st) | |
| SP 6436 | T&NO 350 (1st) | |
| SP 6437 | T&NO 351 (1st) | |
| SP 6438 | T&NO 352 (1st) | |
| SP 6439 | T&NO 353 (1st) |
T&NO F3B's to SP:
| new SP number | prev T&NO number | orig SP number |
| SP 8022 | T&NO 526 (1st) | SP 6111B |
| SP 8023 | T&NO 527 (1st) | SP 6111C |
| SP 8026 | T&NO 530 (1st) | SP 6113B |
| SP 8027 | T&NO 531 (1st) | SP 6113C |
| SP 8028 | T&NO 532 (1st) | SP 6114B |
| SP 8029 | T&NO 533 (1st) | SP 6114C |
| SP 8030 | T&NO 534 (1st) | SP 6115B |
| SP 8031 | T&NO 535 (1st) | SP 6115C |
| SP 8032 | T&NO 528 (1st) | SP 6116B |
| SP 8033 | T&NO 529 (1st) | SP 6116C |
| SP 8034 | T&NO 536 (1st) | SP 6117B |
| SP 8035 | T&NO 537 (1st) | SP 6117C |
T&NO F7B's to SP:
| new SP number | prev T&NO number | |
| SP 8286 | T&NO 538 (1st) | |
| SP 8287 | T&NO 539 (1st) | |
| SP 8288 | T&NO 540 (1st) | |
| SP 8289 | T&NO 541 (1st) |
SP F7A's to T&NO:
| new T&NO number | prev SP number | |
| T&NO 338 (2nd) | SP 6187; orig. SP 6143D | back to SP 3/1957 |
| T&NO 339 (2nd) | SP 6189; orig. SP 6144D | back to SP 3/1957 |
| T&NO 340 (2nd) | SP 6188; orig. SP 6144A | back to SP 3/1957 |
| T&NO 341 (2nd) | SP 6221; orig. SP 6160D | back to SP 3/1957 |
| T&NO 342 (2nd) | SP 6212; orig. SP 6156A | back to SP 3/1957 |
| T&NO 343 (2nd) | SP 6205; orig. SP 6152D | back to SP 3/1957 |
| T&NO 344 (2nd) | SP 6200; orig. SP 6150A | back to SP 3/1957 |
| T&NO 345 (2nd) | SP 6198; orig. SP 6149A | back to SP 3/1957 |
| T&NO 346 (2nd) | SP 6220; orig. SP 6160A | back to SP 3/1957 |
| T&NO 347 (2nd) | SP 6199; orig. SP 6149D | back to SP 3/1957 |
| T&NO 348 (2nd) | SP 6197; orig. SP 6148D | back to SP 3/1957 |
| T&NO 349 (2nd) | SP 6213; orig. SP 6156D | back to SP 11/1960 |
| T&NO 350 (2nd) | SP 6196; orig. SP 6148A | back to SP 8/1960 |
| T&NO 351 (2nd) | SP 6201; orig. SP 6150D | |
| T&NO 352 (2nd) | SP 6186; orig. SP 6143A | |
| T&NO 353 (2nd) | SP 6204; orig. SP 6152A |
SP F7B's to T&NO:
| new T&NO number | prev SP number | |
| T&NO 526 (2nd) | SP 8101; orig. SP 6150C | back to SP 3/1957 |
| T&NO 527 (2nd) | SP 8087; orig. SP 6143C | back to SP 3/1957 |
| T&NO 528 (2nd) | SP 8112; orig. SP 6156B | back to SP 3/1957 |
| T&NO 529 (2nd) | SP 8104; orig. SP 6152B | back to SP 3/1957 |
| T&NO 530 (2nd) | SP 8096; orig. SP 6148B | back to SP 3/1957 |
| T&NO 531 (2nd) | SP 8120; orig. SP 6160B | back to SP 3/1957 |
| T&NO 532 (2nd) | SP 8121; orig. SP 6160C | back to SP 3/1957 |
| T&NO 533 (2nd) | SP 8099; orig. SP 6149C | back to SP 3/1957 |
| T&NO 534 (2nd) | SP 8086; orig. SP 6143B | back to SP 3/1957 |
| T&NO 535 (2nd) | SP 8089; orig. SP 6144C | |
| T&NO 536 (2nd) | SP 8105; orig. SP 6152C | |
| T&NO 537 (2nd) | SP 8100; orig. SP 6150B | |
| T&NO 538 (2nd) | SP 8098; orig. SP 6149B | |
| T&NO 539 (2nd) | SP 8113; orig. SP 6156C | |
| T&NO 540 (2nd) | SP 8088; orig. SP 6144B | |
| T&NO 541 (2nd) | SP 8097; orig. SP 6148C |